=Greek ὕσωππος. The annotations of the native Syriac lexicographers (see the extensive quotations in PSm) make it clear that this word was no longer in active use in post-biblical times. Note that it appears to be an Aramaic loan in Neo-Babylonian (CAD Z p. 163; contrast G. Bos, European Journal of Jewish Studies 2.2(2009): 349).
Given Hebrew אֵזוֹב, the form appearing in Jewish Aramaic texts, the precise route of this eastern Mediterranean culture word cannot be determined. See note s.v. ˀyzwb.