Where does “reeleth” come from?

reeleth (English) comes from English reel, from Middle English reel, from Old English rēol.

reeleth (English): third-person singular simple present indicative...

Definitions

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

Ancestry of “reeleth”, step by step

reeleth traces back through two separate lines of ancestry.

via English reel

StepLanguageWordMeaning
1EnglishreelA shaky or unsteady gait; A lively dance...
2Middle Englishreel—
3Old Englishrēol—

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Old English rēol →Every word from Middle English reel →Every word from English reel →