OfA, BA אָחְָרִי ; CPA: ܚܘܪܝ‏; in Sam. also used for masculine; emphatic: JLA, JPA, LJLA אֻחרָנְתָא ; Sam. אוריתא , Syr. ܐ݂ܚܪܹܬܵܐ܂ ܐ݂ܚܪܹܢ݂ܬܵܐ‏, JBA אחריתי ; NB in Syriac this word is most often spelled without internal yodh but when with a yodh easily confused with forms of ˀḥry adj. and ˀḥry, ˀḥrytˀ noun. Also note that the sg. form is normally without nun (except in the Mandaic back-formation hruntia), but the nun returns in the plural in which Syriac adds the characteristic yodh of the singular: ܐ݂ܚܪ̈ܵܢܝܵܢ܂ ܐ݂ܚܪ̈ܵܢܝܵܬܵܐ‏.

See also s.vv. ˀḥrh, ˀwḥrn.
Note that any reference to this feminine form seems to be totally missing from LS² where we would expect to find it under the masculine form on page 13.
Jewish Aramaic prints display a very confused picture of the forms of this word.