Where does “contrarotation” come from?

contrarotation (English) comes from English rotation, from Latin rotatio, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere, from Latin dis-, from Latin calceus — small stone, pebble; gravel, rubble.

contrarotation (English): Rotation in a contrary direction; The use of a...

Definitions

  1. Rotation in a contrary direction; The use of a...

Ancestry of “contrarotation”, step by step

contrarotation traces back through two separate lines of ancestry.

via English rotation

StepLanguageWordMeaning
1EnglishrotationThe act of turning around a centre or an axis; A...
2Latinrotatiorotation
3Latin-tiōtion, -ation, -ing
4Latindissertātiō(spoken) dissertation, discourse, disquisition
5Latindissertusarranged, disposed; explained
6Latindissereresecond-person singular future passive indicative...
7Latindis-asunder, apart, in two; reversal, removal;...
8Latincalceusshoe
9Latincalxlimestone; chalk; the finish line
10Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

via English Contra

StepLanguageWordMeaning
1EnglishContraA member of any of various rightist guerrilla...
2Latincontrāagainst
3Latinubīwhere? in what place?, in which place?
4Latincubī
5Proto-Italic*kʷuðeiwhere
Every word from Ancient Greek χάλιξ
contrarotation — Etymology, Origin & Word History | Etymology Explorer