Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
ευϊλατεύειν to propitiate LXX.Deut.29.20
ευιλατεύοντα propitiating LXX.Ps.103.3

Liddell-Scott-Jones

εὐιλατεύω (euilateuō) to propitiate G:V

Included with: εὐιλατεύω-ος [], ον,

(ἵλημι) very merciful, of deities, [Refs 3rd c.BC+]; εὐ. ἐγένου αὐτοῖς [LXX+3rd c.BC+]; later written εὐειλ- [Refs 1st c.BC+]:—hence εὐιλᾰτ-εύω, to be merciful, [LXX]

LSJ Scripture Refs: LXX.Ps.98.8*LXX.Deut.29.20