Where does “disagreeth” come from?

disagreeth (English) comes from English disagree, from Middle English disagre, from Anglo-Norman disagreer, from Old French desagrëer — to be disagreeable; to be unpleasant.

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

Definitions

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

Ancestry of “disagreeth”, step by step

disagreeth traces back through two separate lines of ancestry.

via English disagree

StepLanguageWordMeaning
1EnglishdisagreeTo fail to agree; to have a different opinion or...
2Middle Englishdisagreto refuse to assent to
3Anglo-Normandisagreer
4Old Frenchdesagrëerto be disagreeable; to be unpleasant

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Old French desagrëerEvery word from Anglo-Norman disagreerEvery word from Middle English disagre