A word appearing as an element in Gwahaedir, the Sindarin name of the palantír from drafts of The Lord of the Rings appendices (PM/186 note #15). In The Etymologies of the 1930s, the word N. gwahae was the equivalent of ᴹQ. (a)vahāya under the root ᴹ√KHAYA “far, distant, remote” (EtyAC/KHAYA), so likely meaning “*far away”, a combination of gwa-² “away” and hae “far”.

It is not clear why this word does not have the form gwachae with the proper soft mutation of soft mutation h → ch; compare na-chaered from the A Elbereth Gilthoniel. It could be that Gwahaedir is a Gondorin word, comparable to Gondorian Rohan vs. “proper Sindarin” Rochan(d). There are, however, other cases where this mutation did not occur in the second element of an obvious compound: Gwaihir, Eruhîn, arahadhw, etc.