Where does “cautioneth” come from?

cautioneth (English) comes from English caution — Precept or warning against evil or danger of any...

Ancestry of “cautioneth”, step by step

cautioneth traces back through two separate lines of ancestry.

via English caution

StepLanguageWordMeaning
1EnglishcautionPrecept or warning against evil or danger of any...

via English eth

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