Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!

Gnomish

fadra-

verb. to sate, weary, ‘feed up’

A verb in the Gnomish Lexicon of the 1910s appearing as G. fadra- “to sate, weary, ‘feed up’” based on G. fad “enough” (GL/33).

Neo-Sindarin: For purposes of Neo-Sindarin, I would update this verb to ᴺS. fartha- “to sate, satisfy” based on the 1930s root ᴹ√PHAR “suffice”.