Early Quenya
faika
adjective. free
faika
adjective. bad, worthless, useless
faikar
noun. destroyer, slayer; bane
falka
adjective. bad
faire
adjective. free
qarda
adjective. bad
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!
A word appearing as ᴱQ. faikar in the Gnomish Lexicon of the 1910s as the equivalent of G. fecthir “destroyer, slayer; bane” which in turn was derived from G. fectha- “destroy, ruin, spoil” (GL/34).
Neo-Quenya: I have coined ᴺQ. fehta- “destroy” inspired by the Gnomish verb G. fectha-, so I would update this noun to ᴺQ. fehtar “destroyer”. For “slayer” I would instead use nehtar or [ᴺQ.] nahtar as agental forms of the verb nahta- “slay”.