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

bridol

adjective. changing, varying, variable

A word appearing as G. bridol “changing, varying, variable” in the Gnomish Lexicon of the 1910s based on the early root ᴱ√vṛt (GL/24).

Neo-Sindarin: Since I use ᴺS. gwist “change” for purposes of Neo-Sindarin, I would update this adjective to S. gwistol “changing, varying, variable”.