-î

suffix. feminine suffix

A suffix used to form feminine nouns from common or masculine nouns (SD/435). Another common variant was -ê (SD/438).

-î-

suffix. plural inflection

The inflection used to mark nouns as plural (S/429), used either as a suffix (for weak-nouns) or replacing the last vowel (for strong-nouns). According to Tolkien, the primitive form of this suffix was most likely ✶-yī (SD/424). See the entry on the plural nouns case for further details.

-êth

suffix. feminine suffix

A feminine suffix appearing in several names, as suggested by Carl Hostetter and Patrick Wynn (AAD/11). On SD/427, Tolkien said that the affix -th was often found in feminine forms.