Where does “countersinker” come from?

countersinker (English) comes from English countersink, from English counter-, from Middle English counter-, from Old French countre-, from Old French contre, from Latin contrā, from Latin ubī, from Latin cubī — where.

countersinker (English): A device that countersinks

Definitions

  1. A device that countersinks

Ancestry of “countersinker”, step by step

countersinker traces back through two separate lines of ancestry.

via English countersink

StepLanguageWordMeaning
1Englishcountersinka cylindrical recess, typically machined around a...
2Englishcounter-in opposition to
3Middle Englishcounter-
4Old Frenchcountre-Alternative form of contre-
5Old Frenchcontreagainst
6Latincontrāagainst
7Latinubīwhere? in what place?, in which place?
8Latincubī
9Proto-Italic*kʷuðeiwhere

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-Italic *kʷuðei