ἐπίσιον

ισι, τό
A. pubic region, Hp. Carn. 14,Mul. 1.64, 2.113,120,177, Arist. HA 493a20, Lyc. 1385, Gal. UP 14.13, al., Poll. 2.170,174, Hsch., Suid. EM 363.55, Choerob.inAn.Ox. 2.200, cj. in Archil. 140. [Both spellings in codd.; also ἐπίσειον, which is disproved by the metre in Lyc. l.c.]
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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