Sindarin 

run-

verb. to rub, grind

A neologism coined by Paul Strack in 2020 specifically for Eldamo based on the root √RUN of similar meaning (PE17/89). This very hypothetical verb is one of the few situations in which basic verb might have the vowel u, since normally in Sindarin a short u became o, but it is preserved before nasals as with trunc “great stake” or mund “bull”.

Sindarin Group: Eldamo - neologism/reconstructions. Published by