Quenya 

curuvar

wizard

curuvar _("k")_noun "wizard" (LT1:269 but Gandalf, Saruman etc. were istari)

Istar

wizard

Istar noun "Wizard", used of Gandalf, Saruman, Radagast etc. Pl. Istari is attested. Gen. pl. in the phrase Heren Istarion "Order of Wizards" (UT:388). "The istari are translated wizards because of the connexion of wizard with wise and so with witting and knowing" (Letters:207); by this translation Tolkien tries to reproduce the relationship between Quenya istar and ista- #1, 2.

sairon

wizard

sairon noun "wizard" (SAY); according to LT2:337 and GL:29, Sairon is also the Quenya (or Qenya) name of Dairon (Daeron).

Noldorin 

curunir

noun. man of craft, wizard

Noldorin [Ety/366, LotR/III:VIII, LotR/B, VT/45:24] curu+dîr "man of skill". Group: SINDICT. Published by

Sindarin 

curunír

noun. man of craft, wizard

Sindarin [Ety/366, LotR/III:VIII, LotR/B, VT/45:24] curu+dîr "man of skill". Group: SINDICT. Published by

ithron

noun. wizard

Sindarin [UT/448, Letters/448] Group: SINDICT. Published by

curunír

wizard

curunír (i gurunír, o churunír) (man of craft), no distinct pl. form except with article (i churunír), coll. pl. curuníriath.

ithron

wizard

1) ithron (= Quenya istar, one of the order Gandalf belonged to), pl. ithryn, coll. pl. ithronnath (UT:388), 2)