ἐπιούσιος
ἐπιούσιος, ον, either,
A). sufficient for the coming (and so current) day,(ἐπιοῦσα (sc. ἡμέρα)), or, for the day (ἐπὶ τὴν οὖσαν (sc. ἡμέραν)), ἄρτος Ev.Matt. 6.11 , Ev.Luc. 11.3 ; τὰ ἐ. dub. sens. (cf. Phil.Woch. 47.889 ) in Sammelb. 5224.20 . (Very rare word in Origen's day, De Orat. 27.7 .)