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!

Qenya 

sanka

adjective. cleft, split

An adjective for “cleft, split” in The Etymologies of the 1930s derived from ᴹ✶staknā under the root ᴹ√STAK “split, insert” (Ety/STAK).

Conceptual Development: The Qenya Lexicon of the 1910s had the adjective ᴱQ. kisin “cleft” derived from the early root ᴱ√KISI (QL/47).