οἴοθεν
From LSJ
Σοφὸς γὰρ οὐδείς, ὃς τὰ πάντα προσκοπεῖ → Omnia vel sapiens nemo est, qui prospexerit → Denn keinen Weisen gibt's, der alles sieht vorher
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.