πηός

A. kinsman by marriage, Il. 3.163, Od. 8.581, 10.441, 23.120, Hes. Op. 345, Call. Fr. 6.8 P.: generally, kinsman, Sammelb. 7423.14 (Egypt), prob. in Supp.Epigr. 2.461.1 (Histria). (Wrongly derived from πέπαμαι by Eust. 134.43.)
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project