A title of Aragorn as the restorer of Gondor (LotR/1110) added in the second edition of The Lord of the Rings (RC/580). It is a combination of the verb envinyata- “renew” with the archaic agental suffix -r(o) (usually reduced to -r).
Quenya
Envinyatar
the renewer
envinyatar
masculine name. Renewer
Elements
Word Gloss envinyata- “to renew, heal, to renew, heal, *restore” -r(o) “agental suffix”
envinyanta
healed
envinyanta passive participle "healed" (MR:405), pointing to a verbal stem #envinyata- "heal", literally "renew"; cf. Aragorn's title Envinyatar "the Renewer" (LotR3:V ch. 8).
en-
verb. again-
en- (4) prefix "again-", "re-" (PE17:68), in enquantuva "shall refill", entuluva, "shall come again", Envinyatar "Renewer", envinyanta "healed, *renewed", enyalië "to recall" (Nam, RGEO:67, LotR3:V ch. 8, VT41:16, MR:405, UT:317; as for the etymology of en-, see comments on Common Eldarin base EN "again, once more" in VT48:25)
Envinyatar noun "the Renewer" (LotR3:V ch. 8)