ἐγκολπισμός
From LSJ
Ἡ δὲ Σελήνη γενομένη μὲν ἐκ τῆς ἀντανακλάσεως τοῦ ἡλιακοῦ φωτὸς → the moon having been made from the reflection of sunlight (Vettius Valens, Anthologies 1.14)
English (LSJ)
ὁ, A vaginal douche or clyster, Aët.3.153.
Spanish (DGE)
-οῦ, ὁ
clister, lavativa vaginal Aët.3.153, Steph.in Hp.Aph.3.136.15.