πυγή

ῆς, ἡ
A. πῦγα Arist. Phgn. 810b1 (τὸ πυγή is a barbarism in Ar. Th. 1187):—rump, buttocks, Archil. 91, Ar. Eq. 365, Sor. 2.60, etc.; pl., Luc. Peregr. 17; ποτὶ πυγὰν ἅλλεσθαι to kick up the heels so as to strike the buttock in dancing, dance the fling, a girls' exercise at Sparta, Ar. Lys. 82, cf. Antyll. ap. Orib. 6.31.2; πρὸς π. πηδῆσαι Hp. Nat.Puer. 13 (cited as πρὸς πυγὰς πηδᾶν by Sor. 1.60).
2. metaph. of fat, swelling land, Eust. 310.2.
II. = οὐρά, EM 513.14.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project