Where does “inter-regional” come from?

inter-regional (English) comes from English regional, from Middle French régional, from Latin regionalis, from Latin regiō, from Latin Aemilia, from Latin aemulus, from Proto-Italic aimelos, from Proto-Italic aimos — to copy, imitate.

Ancestry of “inter-regional”, step by step

StepLanguageWordMeaning
1EnglishregionalOf, or pertaining to, a specific region or...
2Middle Frenchrégional
3LatinregionalisOf or belonging to a region or province—regional,...
4Latinregiōdirection, line
5LatinAemilia
6Latinaemulusstriving to equal or excel, rivaling; in a bad...
7Proto-Italicaimelosstriving to equal or excel, rivaling; in a bad...
8Proto-Italicaimosimitation
9Proto-Indo-Europeanh₂eym-to copy, imitate
Every word from Proto-Indo-European h₂eym-Every word from Proto-Italic aimosEvery word from Proto-Italic aimelos
inter-regional — Etymology, Origin & Word History | Etymology Explorer