Where does “idleth” come from?

idleth (English) comes from English idle, from Middle English idel, from Old English īdel, from Proto-West Germanic *īdl — void, empty, ineffective.

idleth (English): Third-person singular simple present indicative...

Definitions

  1. Third-person singular simple present indicative...

Ancestry of “idleth”, step by step

idleth traces back through two separate lines of ancestry.

via English idle

StepLanguageWordMeaning
1EnglishidleEmpty, vacant; Not being used appropriately; not...
2Middle Englishidel—
3Old Englishīdelempty, void; bereft
4Proto-West Germanic*īdlvoid, empty, ineffective

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Proto-West Germanic *īdl →Every word from Old English īdel →Every word from Middle English idel →