Where does “ascertainer” come from?

ascertainer (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.

ascertainer (English): One who, or that which, ascertains

Definitions

  1. One who, or that which, ascertains

Ancestry of “ascertainer”, step by step

ascertainer 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 ER

StepLanguageWordMeaning
1EnglishERThe statistic "Earned Run"; Initialism of...
2Turkisherearly; brave; man, male
3Ottoman Turkishایرsaddle, a seat for a rider placed on the back of a horse or other animal
4Old Anatolian Turkishایرearly, at a time in advance of the usual or expected event
5Proto-Turkicēdersaddle
Every word from Proto-Indo-European krey-Every word from Latin certusEvery word from Vulgar Latin certanus