Where does “contra” come from?

contra (Sicilian) comes from Latin contrā, from Latin ubī, from Latin cubī, from Proto-Italic *kʷuðei — where.

Ancestry of “contra”, step by step

StepLanguageWordMeaning
1Latincontrāagainst
2Latinubīwhere? in what place?, in which place?
3Latincubī—
4Proto-Italic*kʷuðeiwhere

Words derived from “contra”

Every word from Proto-Italic *kʷuðei →Every word from Latin cubī →Every word from Latin ubī →