τὸ τῶν γεωργῶν ὅσαι τε ἄλλαι τέχναι (Plato, Timaeus 17c10) → the class of farmers and other such crafts(men)
clean: P. and V. καθαίρειν.
wash (clothes, etc.): Ar. and P. πλύνειν; see wash.