Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
καινιούσι shall revive LXX.Isa.61.4
καινιεί shall revive LXX.Zeph.3.17

Liddell-Scott-Jones

καινίζω (kainizō) to revive G:V

καινίζω,

(καινός) properly make new or strange, but usually in derivation senses, καί τι καινίζει στέγη the house has something new, strange about it, [Refs 5th c.BC+]; κ. εὐχάς offer new, strange prayers, [Refs 5th c.BC+]; ἀμφίβληστρον ὡς ἐκαίνισαν (corr. Blomf. for σ᾽ ἐκαίνισαν) how they devised a new, strange net, [Refs 5th c.BC+]; so later, innovate, καθολικόν τι καινίζειν [Refs] —passive [Refs 1st c.AD+]; in Poets, especially use for the first time, handsel, καίνισον ζυγόν try on thy new yoke, [Refs 4th c.BC+]; πρῶτος τὸν ταῦρον ἐκαίνισεν first handseled the bull [of Perilaus], [Refs 3rd c.BC+]; κ. δόρυ first to feel the spear, [Refs 3rd c.BC+]