οἴοθεν
From LSJ
οἱ βάρβαροι γὰρ ἄνδρας ἡγοῦνται μόνους τοὺς πλεῖστα δυναμένους καταφαγεῖν καὶ πιεῖν → for great feeders and heavy drinkers are alone esteemed as men by the barbarians
English (LSJ)
Adv. from one only, i. e. by oneself, alone, οἰ. οἶος Il.7.39,226; without οἶος, Arat.55, A.R.1.270, etc.