ὕδωρ δι' ἀκριβείας ἐστί τινι → water is scarce for someone
Ar. ὠστίζεσθαι (dat.), P. and V. ὠθεῖν, ἐλαύνειν, V. βίᾳ ὠθεῖν, πρὸς βίαν ἐλαύνειν, P. περιωθεῖν.