Usage: 6 forms in 13 verses
Form Translated As     In Verse(s)
ρανώ I will sprinkle LXX.Ezek.36.25
ρανείσ you shall sprinkle LXX.Exod.29.21
ρανεί he shall sprinkle LXX.Lev.14.16LXX.Lev.16.14LXX.Lev.16.14LXX.Lev.16.15LXX.Lev.16.19LXX.Num.19.4
shall sprinkle LXX.Lev.4.17LXX.Lev.14.27
ρανάτωσαν let LXX.Isa.45.8
ράνει he shall sprinkle LXX.Lev.5.9
έρρανεν he sprinkled LXX.Lev.8.11

Liddell-Scott-Jones

ῥαίνω (rhainō) to sprinkle G:V

ῥαίνω,

[Refs 5th c.BC+]: future ῥᾰνῶ [Refs 4th c.BC+]: aorist ἔρρᾱνα [Refs 5th c.BC+]; Ionic dialect ἔρρηνα [Refs 5th c.BC+]perfect ἔρραγκα (δι-) [LXX]middle, aorist ἐρρᾱνάμην (περι-) [Refs 4th c.BC+]:—passive, aorist ἐρράνθην [Refs 5th c.BC+]perfect ἔρραμμαι Persae. cited in [Refs 2nd c.AD+]; later ἔρρασμαι [Refs 8th c.BC+]—Epic dialect aorist imperative ῥάσσατε [Refs 8th c.BC+]perfect passive ἐρράδαται[Refs], pluperfect ἐρράδατο [Refs 8th c.BC+] [] are formed as if from present ῥάζω,[Refs]

__I sprinkle, besprinkle, with accusative of the object besprinkled,
__I.1 properly with liquids, ῥάσσατε (i.e. δῶμα ὕδατι) [Refs 8th c.BC+]; ἐκ καλπίδων μύροις . [Refs 2nd c.BC+]:—passive, πύργοι καὶ ἐπάλξιες αἵματι φωτῶν ἐρράδατ᾽ [Refs 8th c.BC+]
__I.2 also of solids, bestrew, besprinkle, [ἵπποι] ῥαίνοντο κονίῃ [Refs 8th c.BC+]
__I.3 metaphorically, . τινὰ ὕμνῳ, νᾶσον εὐλογίαις, [Refs 5th c.BC+]
__II sprinkle, scatter, with accusative of the thing scattered or sprinkled, ῥανῶ τε πεδόσ᾽ ἐγκέφαλον will scatter it on the ground, [Refs 5th c.BC+]; ῥαίνειν sprinkle (water) on the fish, [Refs 4th c.BC+]; ῥαίνειν ὀξίδας ἐς τὰ βλέφαρα sprinkle vinegar in their eyes, [Refs 5th c.BC+]
__III absolutely, sprinkle water, [Refs 4th c.BC+]; ῥανίσι . let water fall in drops, [Refs]

LSJ Scripture Refs: LXX.Prov.7.17