G2178
ἐφάπαξ
once/at once
ἐφ-άπαξ, adv. __1. once for all (Eupol.): Rom.6:10 Heb.7:27 9:12 10:10. __2. at once: 1Co.15:6.† (AS)
The KJV translates G2178 in the following manner:
once (10x)
Full Thayer's lexicon entry
ἐφάπαξ — ephápax
ἐφάπαξ (Treg. in Heb. ἐφ' ἅπαξ; cf. Lipsius, gram. Unters., p. 127), adverb (from ἐπί and ἅπαξ (cf. Winers Grammar, 422 (393); Buttmann, 321 (275))), once; at once i. e.
a. our all at once: 1Co 15:6.
b. our once for all: Rom 6:10; Heb 7:27; Heb 9:12; Heb 10:10. (Lucian, Dio Cassius, others.)
5 occurrences
Romans (1), I Corinthians (1), Hebrews (3)