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

cith

noun. affair, matter, thing

A word appearing as G. cith “affair, matter, thing” in the Gnomish Lexicon, an elaboration of G. “here” (GL/26), clearly based on the early root ᴱ√KI “this by me” (QL/46). Cith was originally glossed “hither”, but this gloss was deleted and elsewhere G. sith has glossed “hither” derived from a newer root ᴱ√SI(N) “this here by me” (GL/68).

Neo-Sindarin: Given the alteration of the root, I would adapt this early word as ᴺS. sith “affair, matter”, as opposed to [N.] nad “thing”. Compare also the later Quenya word tama “that matter” based on a different demonstrative.