# theyfab

> English word · Noun · IPA /ˈðeɪfæb/

## Definitions
1. A non-binary person who was assigned female at birth, often one that does not change their physical appearance.

## Etymology
Etymology tree
Proto-Indo-European *tóy
Proto-Germanic *þai
Proto-Norse *ᚦᚨᛁᛉ (*þaiʀ)
Old Norse þeirbor.
Middle English þei
English they
Proto-Indo-European *h₂éd
Proto-Italic *ad
Proto-Italic *ad-
Latin ad-
Latin signō
Latin assignōlbor.
Old French assignerbor.
Middle English assignen
English assign
English assigned
Proto-Italic *fēmanā
Latin fēmina
Proto-Indo-European *-lós
Proto-Italic *-elos
Latin -lus
Latin fēmella
Old French femelebor.
Middle English femele
Middle English female
English female
Proto-Indo-European *h₂éd
Proto-Germanic *at
Old English æt
Middle English at
English at
Proto-Indo-European *bʰer-
Proto-Indo-European *-tis
Proto-Indo-European *bʰértisder.
Proto-Germanic *burþiz
Old Norse burðrbor.
Middle English birthe
English birth
English AFAB
English theyfab
Blend of they + AFAB (“assigned female at birth”). The first known use is from December 2016 on Twitter.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/theyfab