עֹנָה is a hapax legomenon at Exodus 21:10, the third term in the triad שְׁאֵרָהּ כְּסוּתָהּ וְעֹנָתָהּ that a master may not diminish for the אָמָה of Exodus 21:7-11, a free-born Hebrew girl sold into a household as wife to the buyer or his son; withholding any one of the three triggers her release without payment (v. 11). The first two terms are largely uncontested: שְׁאֵר as food or rations (compared with Akkadian ipru), כְּסוּת as clothing (Akkadian lubuštu). The third is not.
Every ancient version except the Vulgate reads the term sexually: LXX τὴν ὁμιλίαν αὐτῆς, Peshitta ומשכבה, and the Palestinian Targumim with the idiom for a man coming in to a woman. Onqelos merely reproduces the Hebrew, and Jerome renders pretium pudicitiae, a payment for chastity. Rabbinic tradition codifies the sexual reading: Mekhilta de-Rabbi Ishmael, Nezikin 3, preserves a Tannaitic dispute over which of the three words carries which sense but presumes the triad food, clothing, and conjugal duty; b. Ketubbot 47b identifies עונתה as her conjugal right, underwriting the schedule of frequency by profession at m. Ketubbot 5:6; Maimonides fixes the three as the Torah-mandated core of a husband's obligations (Hilkhot Ishut 12:2), and the Aramaic ketubbah still preserves the language. Medieval derivations vary while preserving the sense: Ibn Ezra and Radak derive it from עֵת, comparing עֵת דֹּדִים (Ezekiel 16:8); Ramban reads שאר itself as bodily closeness (Leviticus 18:6); Rashi glosses תשמיש without deriving it. Rashbam dissented, deriving the noun from מָעוֹן with a mem preformative and reading her lodging, followed by Joseph Bekhor Shor and Ḥizkuni.
The decisive modern intervention is structural rather than etymological. Paul (JNES 28 [1969]: 48-53; Studies in the Book of the Covenant, VTSup 18) assembled cuneiform evidence that grain, oil, and clothing rations (ipru, piššatu, lubuštu) form a stereotyped maintenance formula for dependents across a millennium and a half: Ur-Nammu, Lipit-Ishtar 27, Eshnunna 32, Hammurabi 178, Middle Assyrian Laws A 36, and Neo-Babylonian marriage contracts (šeʾa šamna u lubāra), with Instruction of Ptahhotep 21 as an Egyptian parallel and Hosea 2:7 and Ecclesiastes 9:7-9 as biblical ones. Paul concluded that עֹנָה occupies the piššatu slot, conceding that no Semitic root yielding the sense oil is attested. Sarna (JPS Exodus, 121) endorses him cautiously and supplies the standing formulation that the traditional gloss has no philological support while Paul's alternative is philologically unsustained; NJPS prints conjugal rights with a marginal alternative of ointments. Wright builds the identification into his case that the Covenant Code revises Hammurabi; Westbrook and Wells accept the maintenance formula as the interpretive frame without fixing the Hebrew referent.
Pushback runs along two lines. Philologists resist an unattested sense: Propp (Anchor Yale Bible, Exodus 19-40) rejects the oil identification and finds the conjugal reading insecure, leaning to Rashbam's מָעוֹן derivation while conceding that no independent noun עֹנָה meaning dwelling occurs in Biblical Hebrew; Cassuto and von Soden (UF 13 [1981]: 157-164) argue the shelter reading directly; Paradise accepts Paul's frame but proposes a general maintenance sense on the analogy of Akkadian piqittu. Others defend the tradition: Jackson (Wisdom-Laws) doubts that the Mishpatim derive from a specific Akkadian formula, and Deem (JSS 23 [1978]: 25-30), extended by Morag, posits a homonymous root ענה II meaning consensual sexual love, which would supply the etymology the traditional reading otherwise lacks. Conjectural emendations (Oren's עִנֻּגָהּ, Tur-Sinai's עֻגָּתָהּ) have no manuscript support and are generally rejected. The lexicons register the impasse: BDB glosses cohabitation and lists three candidate roots; HALOT gives conjugal rights as primary with Paul as a serious alternative; DCH lists conjugal rights, ointment, and both emendations without adjudicating; Gesenius 18 keeps eheliche Beiwohnung with Paul in the apparatus. Houtman (HCOT) reviews the candidates and concludes that cohabitation and a maintenance term are both defensible, Paul's argument being the strongest new proposal but not decisive. Work on the pericope's social setting (Meyers, Pressler, Frymer-Kensky, Barmash, Shectman) stresses that the law is unusually protective of a woman of precarious status, so that the sanction in v. 11 holds whichever reading of the third term is adopted, even as the theological weight of the law shifts with it.