Saris
סָרִיס
Saris is the rabbinic term usually rendered into English as eunuch, covering a person assigned male at birth who develops no male secondary characteristics, whether by nature or by castration. The English Wikipedia article on the category names three routes into it: developing female characteristics, failing to reach sexual maturity by the age of twenty, and undergoing castration. Which of the three applies decides most of what the law then says about the person.
What the record holds for Saris
First documented
Undated
No first use has been pinned to a source. The catalogue does not guess a year, and an empty field is the honest output.
Coined by
Not on record. The word is in use with no traceable author, which is the ordinary case for vocabulary that grew inside a community rather than being announced.
How common
Historical / doctrinal
Obligation in this system is gendered, which is what makes such a category necessary in the first place. Commandments, inheritance, marriage and ritual duty are assigned by sex, so somebody the two ordinary classes do not describe has to be placed before the law can operate at all. My Jewish Learning, whose account of the rabbinic designations was written with a contribution from Rabbi David Seidenberg, is careful about what that placing is: the rabbis were not using gender in the modern sense of a construct held apart from the body, and each designation they drew is marked out by a physical fact.
Why the saris is split by cause
The literature separates two kinds. A person who does not go through male puberty naturally is a saris hamah; a person in the same position through human intervention, whether deliberate or accidental, is a saris adam. The distinction carries different marriage law, and the sources treat the two as different legal cases rather than as one condition arrived at by two roads.
Wikipedia's article adds a point about practice: castration was known in the cultures around ancient Israel, and the ancient Hebrews did not practise it. The saris adam enters the halakhic literature largely as a person to whom something was done, often elsewhere, and not as the product of a Jewish institution. That is one reason the English word eunuch sits badly on the term. It carries courts, household offices and a job description with it, and the Hebrew word carries a status the law has to work out.
The third route is developmental and is fixed by an age. A person assigned male at birth who has not reached sexual maturity by twenty, the sign for which the sources give as bringing forth two pubic hairs, counts as a saris on that basis alone. The test is physical, checkable and blunt. Nothing dates any of it: the Mishnah carries the term, Isaiah carries it, and no source traced for this entry fixes a year for either.
Why the saris is grouped with the aylonit
The aylonit is identified female at birth and develops no secondary female characteristics at puberty, and the two terms travel together through the literature. What the rabbis found significant about both, on My Jewish Learning's reading, is a presumption of infertility and the legal complications that follow from it, rather than appearance in itself.
Mishnah Niddah 5:9 shows the machinery working. A woman of twenty who has not grown two pubic hairs brings proof of her age, and from that point holds the status of an aylonit. She may still marry. If her husband dies childless, his brother is not obliged to marry her under the law of levirate marriage, and she neither performs halitzah nor enters that marriage, because no child was expected of the union to begin with. The ruling settles what the law can require of a household.
The saris occupies the same position from the other side. Neither term describes what a person takes themselves to be, and neither is a word anybody in the sources uses of themselves. Tumtum and Androgynos, the designations usually listed beside them, are drawn the same way, from what an examination can and cannot establish.
How marriage rulings treat a saris adam
Marriage is where the split between the two kinds does its heaviest work. A saris hamah may marry without restriction. A saris adam may not marry a Jewish woman, and the reasoning Wikipedia reports from the sources attaches to the wife: the concern recorded is that she may commit adultery as a consequence of his infertility. A saris adam already married when he was castrated is required to divorce.
Set beside the aylonit, who may marry although childlessness is expected of the match, the two rulings do not line up. Infertility disqualifies in one direction and not in the other, and the reason given for the harder ruling is an expectation about somebody else's conduct.
The term belongs with the categories a legal system draws rather than with anything a person claims. Two people in identical physical condition are placed differently according to how they arrived there, which is a question no account of identity would think to ask. The Hebrew word is the same in both cases; the ruling is not.
What Isaiah promises the saris
The word is not confined to the legal material. Isaiah 56 addresses the saris directly, and it is the one passage in the sources for this entry where the category is spoken to rather than ruled on. The prophet tells the saris not to say "I am a withered tree", and promises those who keep the sabbaths "an everlasting name that shall not perish".
Wikipedia files the passage under a heading for references in the holy texts and gives no other. The condition attached to the promise is keeping the sabbaths, which is something a saris can do, in place of a lineage, which is the thing the law assumes he cannot supply.
The promise takes its force from exactly the disability the halakhah records. A house without descendants was the standard image of a name coming to an end, and the passage answers that image with a name of another kind. The legal literature and the prophetic passage are doing opposite things with the same word, one working out obligations and the other addressing a person, and both are part of what the term carries.
Which other things the name saris carries
Saris is also a European surname, and the two words have nothing to do with each other. Geneanet, drawing on the second edition of the Dictionary of American Family Names published in 2022, gives the Dutch surname as a short form of the personal name Sesaris, from the Latin Caesarius, a Christian saint's name, and files the neighbouring Sarisky as a Slovak and Czech habitational name for somebody from Šariš in eastern Slovakia. Its database holds records for close to nine thousand people carrying the name.
Baby-name pages add a third reading. One such page glosses Saris as Hebrew in origin, derived from sar, prince or chief, associates it with Sarah, and makes no mention of the rabbinic category at all. That derivation is not the one the halakhic sources use, and nothing connects it to them. The result is a search term that returns a legal status, a Dutch family name and a name-meaning page in the same handful of results, which is the ordinary fate of a short transliterated word.
Nobody has counted people in this category, and nobody could: it is a ruling about a person, and no one registers under it. The Eunuch entry covers the wider history the English translation drags in, and the seven rabbinic designations are set out in full on the Tumtum page.
Told apart
Often confused with Saris
- EunuchThe standard English translation and a poor fit. Eunuch names a role in courts and households across several cultures; saris names a legal status in halakhah, arrived at by castration in only one of its three forms.

- TumtumAn adjacent rabbinic designation, and drawn on a different basis. A tumtum has genitals the law cannot examine; a saris has a body that did not develop as expected, or was altered.

- AndrogynosThe other designation usually listed alongside. An androgynos has both sets of genitals from the start, which is a fact about anatomy; the saris categories turn on development and on cause.

- IntersexSometimes offered as a modern equivalent for the whole rabbinic set. The saris categories include castration, which no clinical classification would place beside a variation in sex characteristics.

Common questions
Questions about סָרִיס
- Is saris the same as eunuch?
- Eunuch is the usual English rendering and it fits only part of the term. A saris adam has been castrated, which is what eunuch normally means, but a saris hamah has simply not gone through male puberty, and a third route into the category is the development of female characteristics. The English word also carries an occupation with it, which the Hebrew does not.
- What separates saris hamah from saris adam?
- The cause. Saris hamah covers a person who did not go through male puberty naturally, and saris adam covers a person in the same physical position because of human intervention, whether deliberate or accidental. The two are married under different rules.
- Why does the age of twenty matter?
- It is where the sources set the test. A person assigned male at birth who has not reached sexual maturity by twenty is counted a saris, and the sign the literature gives is the appearance of two pubic hairs. Mishnah Niddah 5:9 applies the same age and the same sign to the aylonit, the counterpart category for a person identified female at birth.
- Can a saris marry?
- A saris hamah may marry without restriction. A saris adam may not marry a Jewish woman, and one who was already married at the time of castration is required to divorce. The reason Wikipedia reports from the sources concerns the wife, the stated concern being adultery following from his infertility.
- Did the rabbis treat saris as a gender?
- Not in the sense the word now carries. My Jewish Learning lists saris hamah and saris adam among seven designations in the Talmud and states plainly that the rabbis were not describing a cultural construct held apart from the body. Reading the set as seven genders is a rereading undertaken in recent decades, and the article says so.
Added 2026-08-29 · Revised 2026-09-07
The evidence behind the word
How thoroughly Saris has been counted
Not how common the word is. How much of a population anybody has actually measured it across, on a six-step scale where each step is defined by the kind of evidence it takes to reach it, never by a score. The full method.
Historical / doctrinal
Category from religious-legal texts; no living population to measure.
Measured against Talmudic sources via My Jewish Learning, Jewish Encyclopedia
Gender Census and USTS are self-selected community samples (shares of the gender-diverse community, multi-select, checkbox lists change yearly), not population prevalence. Only Williams Institute and Ipsos provide general-population estimates. Culture-specific figures mix census counts, academic studies, and advocacy estimates - each row cites its source.
Nearby in the catalogue
Related entries
- EunuchA castrated man, and for most of history castrated by someone else. Court office, harem guard, castrato, and a disputed clinical chapter since 2022.

- TumtumA rabbinic legal category for a person whose sex cannot be determined. Seventeen occurrences in the Mishnah, and a ruling term, not a claim.

- AndrogynosA rabbinic category for a person with both sets of genitals, ruled like a man in some respects and like a woman in others. Greek word, Talmudic use.

- IntersexA fact about bodies that nearly every gender list files as an identity, and two prevalence figures thirty times apart from one single source.
