Where does “contrastimulus” come from?

contrastimulus (English) comes from English Contra, from Latin contrā, from Latin ubī, from Latin cubī, from Proto-Italic *kʷuðei — where.

Ancestry of “contrastimulus”, step by step

contrastimulus traces back through two separate lines of ancestry.

via English Contra

StepLanguageWordMeaning
1EnglishContraA member of any of various rightist guerrilla...
2Latincontrāagainst
3Latinubīwhere? in what place?, in which place?
4Latincubī
5Proto-Italic*kʷuðeiwhere

via English stimulus

StepLanguageWordMeaning
1EnglishstimulusAny external phenomenon that has an influence on...
2Latinstimulusa goad, prick; a sting; stimulus, incentive
3Proto-Indo-Europeanstey-to stick; compress; condense
Every word from Proto-Italic *kʷuðeiEvery word from Latin cubīEvery word from Latin ubī