Abbott-Smith Manual Greek Lexicon
ῥαντισμός (G4473)
2 † ῥαντισμός , -ῦο, ὁ ( ῥαντίζω ), [in LXX for נִדָּה ;] sprinkling : of the ceremonial sprinkling of blood for purification, He 12:24 , I Pe 1:2 (v. Hort, Pe. , 23 ff.).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain