Where does “decreaseth” come from?

decreaseth (English) comes from English decrease, from Middle English decresen, from Middle English discresen, from Old French descreistre, from Latin decrēscere.

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

Definitions

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

Ancestry of “decreaseth”, step by step

decreaseth traces back through two separate lines of ancestry.

via English decrease

StepLanguageWordMeaning
1EnglishdecreaseOf a quantity, to become smaller
2Middle Englishdecresen
3Middle EnglishdiscresenTo decrease in size, number, or extent
4Old Frenchdescreistreto decrease; to lessen; to diminish
5Latindecrēscere

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Latin decrēscereEvery word from Old French descreistreEvery word from Middle English discresen