Luke 24:31

Were opened (dihnoicqhsan). Ingressive first aorist passive indicative of dianoigw. Knew (epegnwsan). Effective first aorist active indicative fully recognized him. Same word in verse Acts 16 . Vanished (apanto egeneto). Became invisible or unmanifested. Apanto from a privative and painomai, to appear. Old word, only here in the N.T.