adjure

Origin

From Late Middle English adjuren (“to bind (oneself or someone) by oath to do something; to entreat or implore (someone); to question (someone) under oath”), from Anglo-Norman adjurer, Middle French adjurer, and Old French ajurer (“to bind (oneself or someone) under oath; to entreat or implore (someone)”) (modern French adjurer), and from their etymon Latin adiūrāre, the present active infinitive of adiūrō (“to take an oath”) (whence Late Latin adiūrō (“to entreat or implore (someone); to conjure; to exorcize”)), from ad- (prefix meaning ‘to, towards’, or having an intensifying effect) + iūrō (“to confirm formally; to take an oath”) (ultimately from Proto-Indo-European *h₂yew- (“(adjective) .