tub
From LSJ
μὴ τὴν ὄψιν καλλωπίζου, ἀλλ' ἐν τοῖς ἐπιτηδεύμασιν ἴσθι καλός → Don't beautify your face, but be beautiful in your habits (Thales, in Diog. Laertius 1.37)
subs.
Ar. and V. σκάφη, ἡ (Aesch., Frag.), Ar. and P. ἀγγεῖον, τό.
Especially for washing: Ar. πύελος, ἡ.