Where does “insisteth” come from?

insisteth (English) comes from English insist, from English insistence, from Middle English insistence, from Old French insister — to insist.

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

Definitions

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

Ancestry of “insisteth”, step by step

insisteth traces back through two separate lines of ancestry.

via English insist

StepLanguageWordMeaning
1EnglishinsistTo hold up a claim emphatically; To demand...
2EnglishinsistenceThe state of being insistent; An urgent demand;...
3Middle Englishinsistence
4Old Frenchinsisterto insist

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Old French insisterEvery word from Middle English insistenceEvery word from English insistence