STRONGS G2178:
													
												
									    		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: 
1 Corinthians 15:6.
b. our 
once for all: 
Romans 6:10; 
Hebrews 7:27; 
Hebrews 9:12; 
Hebrews 10:10. (Lucian, Dio Cassius, others.) 
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