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

ospa-

verb. to seethe, foam, spout

A verb meaning “to seethe, foam, spout” in the Gnomish Lexicon of the 1910s, a verb form of G. osp(a) “foam” (GL/63).

Element in