Quenya 

ontarië

begetter, parent

ontarië noun "begetter, parent" (fem.) (VT44:7)

ontarë

begetter, parent

ontarë noun "begetter, parent" (fem); the pl. ontari or dual ontaru (see ontani) covers both sexes. (ONO, VT46:7)

ontar

begetter, parent

ontar noun prob. *"begetter, parent" (a gender-neutral term, applied to a woman in the source; compare the various gender-specific forms below) (VT44:7). Dual ontaru "(two) parents" (see ontani above).

ontaro

begetter, parent

ontaro noun "begetter, parent" (evidently masc.); pl. ontari or dual ontaru (see ontani) covers both sexes. (ONO, VT46:7)