retroversum
From LSJ
ὦ πολλῶν ἤδη λοπάδων τοὺς ἄμβωνας περιλείξας → you who have licked the labia of many vaginas (Eupolis fr. 52)
rĕtrōversum, adv., à reculons : Pl. d. Non. 145, 14 || -versus, en sens inverse : Petr. 44, 12.
retrōversum, s. 2. retrōversus.
