Where does “ascertainest” come from?

ascertainest (English) comes from English ascertain, from Middle English acerteynen, from Old French acertener, from Old French certain, from Vulgar Latin certanus, from Latin certus, from Proto-Indo-European krey- — to sift, separate, divide.

ascertainest (English): second-person singular simple present form of...

Definitions

  1. second-person singular simple present form of...

Ancestry of “ascertainest”, step by step

ascertainest traces back through two separate lines of ancestry.

via English ascertain

StepLanguageWordMeaning
1EnglishascertainTo find out definitely; to discover or establish;...
2Middle Englishacerteynen
3Old Frenchacertenerto assure; to make sure of, to make certain of
4Old Frenchcertaincertain; sure
5Vulgar Latincertanuscertain
6Latincertuscertain; fixed, settled, firm; resolved,...
7Proto-Indo-Europeankrey-to sift, separate, divide

via English Est

StepLanguageWordMeaning
1EnglishEstestablished
2Middle Englishestegrace, est, favour; pleasure, enjoyment, fun;...
3Old Englishēstwill, consent, favour, grace, liberality,...
4Proto-West Germanic*anstifavour
5Proto-Germanicanstizfavour, affection
6Proto-Germanicunnanąto grant, bestow
7Proto-Indo-Europeanān-to notice; face, mouth
Every word from Proto-Indo-European krey-Every word from Latin certusEvery word from Vulgar Latin certanus