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 

undo

adverb. down, low down

Derivations

  • ᴹ√NDŪ “go down, sink, set (of Sun)” ✧ PE22/127

Phonetic Developments

DevelopmentStagesSources
ᴹ√NDŪ > undo[undo]✧ PE22/127