singly
From LSJ
English > Greek (Woodhouse)
adjective
each separately: P. καθ' ἕκαστον.
by oneself: P. and V. αὐτός, καθ' αὑτόν.
each separately: P. καθ' ἕκαστον.
by oneself: P. and V. αὐτός, καθ' αὑτόν.
unaided, alone: use adj.: P. and V. μόνος, εἷς, V. μοῦνος.