From a derivative of rhaino (to sprinkle); to render besprinkled, i.e. Asperse (ceremonially or figuratively) -- sprinkle.
[ῤαίνω; see ῤαντίζω.]
STRONGS NT 4472: ῤαντίζωῤαντίζω; (from ῤαντός besprinkled, and this from ῤαίνω); 1 aorist ἐρραντισα and (so L T Tr WH) ἐραντισα (see Rho); (1 aorist middle subjunctive ῥαντισωνται (sprinkle themselves), Mark 7:4 WH text (so Volkmar, Weiss, others) after manuscripts א B); perfect passive participle ἐρραντισμενος (Tdf. ῥεραντισμενος, L Tr WH ῥεραντισμενος with smooth breathing; see Rho); for ῤαίνω, more common in classical Greek; to sprinkle: properly, τινα, Hebrews 9:13 (on the rite here referred to cf. Numbers 19:2-10; Winers RWB, under the word Sprengwasser; (B. D., under the word