Quenya 

arimaitë

adjective. skilful, [most] skillful, *gifted

A word glossed “skilful” in Quenya Notes from 1957 (QN), a combination of maitë “-handed” with the superlative prefix ar(i)- (PE17/162). Elsewhere maitë by itself was glossed “skilful” (VT47/6), so perhaps this word was more intensive, meaning “✱most skillful”.

Neo-Quenya: In the “Neologism of the Day” (NotD) series on the Vinyë Lambengolmor Discord Server as posted on 2023-05-30, Raccoon suggested that arimaitë might also mean “✱gifted”.

arimaitë

skillful

arimaitë adj. "skillful" (PE17:162)