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

caf

noun. blade

caf-

verb. to taste (used of the thing)

Gnomish [GL/24; GL/26] Group: Eldamo. Published by

cafalon

adjective. bald, *(lit.) head-naked

cafol

adjective. bald

cafwen

noun. sense of taste, taste, judgement

cim

noun. blade

An (archaic) noun appearing as G. †cim “blade” in the Gnomish Lexicon of the 1910s (GL/26). The noun G. caf “blade” also appeared in the same document, but it was deleted (GL/24).

Neo-Sindarin: The root √KIM “edge, brink of” appeared in Tolkien’s writing of the 1960s, with derivatives like Q. címa “edge of a cutting weapon/tool” (PE22/149). Therefore, I think this Gnomish noun might be retained for purposes of Neo-Sindarin as ᴺS. cim “blade”, perhaps derived from primitive ✱kimbē. I would also assume this Neo-Sindarin word was not archaic.