JLAtg (rarely for the usual k_): הָאך, הֵיך; Syr ܐܲܝܟ݂‏ [pronounced /ˀaḵ/] (and may be compounded with following word, in which case it may also be spelled without yodh!); Mand: aiak; LJLA almost always split: הי כ, but also Syriacizing אך in TgEsth>²

In first millennium BCE Aramaic the preposition "like" is k_, while hyk, ˀyk(h) is adverbial "how" and conjunctional "just as." Its near total replacement by this form (see also s.v. kwt) may be due to simple convergence (comparable to colloquial English use of "like" as a conjunction) or, as the JLA spelling would have it, actually a conflation of hˀ interj. with k_.