Where does “blighteth” come from?

blighteth (English) comes from English blight, from Middle English bleighte, from Old English blǣcþa — leprosy.

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

Definitions

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

Ancestry of “blighteth”, step by step

blighteth traces back through two separate lines of ancestry.

via English blight

StepLanguageWordMeaning
1EnglishblightAny of many plant diseases causing damage to, or...
2Middle Englishbleighte
3Old Englishblǣcþaleprosy

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Old English blǣcþa
blighteth — Etymology, Origin & Word History | Etymology Explorer