λίσσομαι

Etymology
From the same root as and, said root of  origin, but the fact that the λ often makes a preceding short vowel into a heavy syllable, as well as the frequent doubling of the λ after the augment , makes it likely that it comes from an earlier , and thus perhaps from a.

MacBain compares 🇨🇬; another potential cognate is 🇨🇬, see there for more discussion.

Verb

 * 1)  to pray, beseech