Where does “crankcase” come from?

Crankcase is a compound of crank and case, where crank derives from Middle English cronk, Old English cranc, Latin casus meaning "fall" or "chance," from cadere meaning "to fall," ultimately from Proto-Indo-European keh₂p- meaning "to seize."

crankcase (English): The part of an engine that contains the...

Definitions

  1. The part of an engine that contains the...

Ancestry of “crankcase”, step by step

crankcase traces back through two separate lines of ancestry.

via English Case

StepLanguageWordMeaning
1EnglishCaseabstract feature of a noun phrase that determines...
2GermanKäsecheese; nonsense
3Middle High Germankæsecheese
4Old High Germankāsicheese
5Proto-West Germanickāsīcheese
6Proto-Germanickāsijazcheese
7Latincāseuscheese
8Proto-Indo-Europeankwat-to ferment, become sour; to boil

via English crank

StepLanguageWordMeaning
1EnglishcrankStrange, weird, odd; Sick; unwell; Liable to...
2Middle Low Germankrank
3Old Saxonkrank
4Proto-West Germanickrankweak, sick
5Proto-Germanickrankazbent; crooked; weak
6Proto-Indo-Europeanger-to turn, bend, twist, wind; to tie, bind...
Every word from Proto-Indo-European kwat-Every word from Latin cāseusEvery word from Proto-Germanic kāsijaz