‏ Luke 24:31

 Were opened ( διηνοιχθησαν ). Ingressive first aorist passive indicative of  διανοιγω.

 Knew ( επεγνωσαν ). Effective first aorist active indicative fully recognized him. Same word in verse 16.

 Vanished ( αφαντος εγενετο ). Became invisible or unmanifested.  Αφαντος from  α privative and  φαινομα, to appear. Old word, only here in the N.T.

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