Where does “grinneth” come from?

grinneth (English) comes from English grīn, from Middle English grin, from Old English grin — snare.

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

Definitions

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

Ancestry of “grinneth”, step by step

grinneth traces back through two separate lines of ancestry.

via English grīn

StepLanguageWordMeaning
1EnglishgrīnA smile in which the lips are parted to reveal the teeth
2Middle Englishgrin—
3Old Englishgrinsnare

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Old English grin →Every word from Middle English grin →Every word from English grīn →