Where does “proterrendus” come from?

proterrendus (Latin) comes from Latin proterreo, from Latin terreō, from Proto-Indo-European tres-, from Proto-Indo-European ter-, from Italian termine, from Latin terminus, from Proto-Italic termenos, from Proto-Indo-European térmn̥ — boundary, end.

Definitions

Ancestry of “proterrendus”, step by step

StepLanguageWordMeaning
1LatinproterreoI frighten, drive or scare off or away, terrify
2Latinterreōto frighten, terrify, alarm
3Proto-Indo-Europeantres-to tremble
4Proto-Indo-Europeanter-tender, weak; young creature
5Italiantermineend, close; limit, term, date, time; term, word
6Latinterminusa boundary, limit, end
7Proto-Italictermenos
8Proto-Indo-Europeantérmn̥boundary, end
Every word from Proto-Indo-European térmn̥Every word from Proto-Italic termenosEvery word from Proto-Indo-European ter-