Denominative from a form corresponding to Yhuwd; to Judaize, i.e. Become Jewish -- become Jews.
see HEBREW Yhuwd
H3054. yahad
[יהד] verb see below יִהוּדָה below
[יהד] verbdenominative Hithpa`el become a Jew — only participle מִתְיַהֲדִים Esther 8:17 many of the people of the land were becoming Jews.