Likewise or similarly in other lexica. The headword is an epic aorist active of kai/w, third person plural, glossed by the equivalent Attic form; cf. a scholion on Homer, Iliad 1.40, where the first person singular occurs.
The root is *kaw-: in the aorist *kaw-sa- produced *kā-wa-, and in Ionic kh-a-. Other forms of this verb appear at kappa 1184, kappa 1185.