G5516: χξϛ
chx stigma · “666”
Definition
666 as a numeral
KJV translates it as: six hundred threescore and six
Word origin: the 22nd, 14th and an obsolete letter (G4742 (στίγμα) as a cross) of the Greek alphabet (intermediate between the 5th and 6th), used as numbers; denoting respectively 600, 60 and 6;
Extended definition
χξς ́
(on ς, see: Z), in T, Tr., Rec. for ἑξακόσιοι ἑξήκοντα ἕξ,
six hundred and sixty-six (L, mg., R, mg., six hundred and sixteen), the mystical number of the Beast: Rev.13:18 (on the interpretation, see Swete, Ap., 172 f.).†
(AS)
(on ς, see: Z), in T, Tr., Rec. for ἑξακόσιοι ἑξήκοντα ἕξ,
six hundred and sixty-six (L, mg., R, mg., six hundred and sixteen), the mystical number of the Beast: Rev.13:18 (on the interpretation, see Swete, Ap., 172 f.).†
(AS)
Abbott-Smith Manual Greek Lexicon (1922) via STEPBible TBESG (CC BY 4.0).