ὦ πολλῶν ἤδη λοπάδων τοὺς ἄμβωνας περιλείξας → you who have licked the labia of many vaginas (Eupolis fr. 52)
adj.
One by one: P. καθʼ ἕνα.
Each separately: P. καθʼ ἕκαστον.
By oneself: P. and V. αὐτός, καθʼ αὑτόν.
Unaided, alone: use adj.: P. and V. μόνος, εἷς, V. μοῦνος.