Tolkien Gateway

NIMIR

"Who told you, and who sent you?" — Gandalf
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NIMIR is a Mannish (perhaps specifically Adûnaic) root base related to the Elves.

Adûnaic: Nimîr, Nimriyê, Nimrûn Nimruzîr

It's possible that it derived from the word Nómin, a Taliska name for the Elves.