A root in the Qenya Lexicon of the 1910s glossed “origin” but this gloss was marked with a “?” by Tolkien (QL/35). He did indicate that it was related to ᴱ√ENE¹ whose derivatives had to do with devising and invention, however. In this document, √ENU was the basis for ᴱQ. Enu “God”. Given the later alteration of the Elvish word for God to Q. Eru, it is pretty unlikely the root remained valid in Tolkien’s later conception of the Elvish languages.