ἐὰν μή (eàn mḗ｜eh-an' may｜conditional particle or conjuction｜if｜not)
[Grk] ἐὰν μή, ἐάν, μή
Derivation: i.e. ἐάν and μή;
Strong's: if not, i.e. unless
KJV: --X before, but, except, if, no, (if, + whosoever) not.
See: μή
See: ἐάν