Where does “thero-” come from?

thero- (English) comes from Ancient Greek θήρ, from Proto-Hellenic kʷʰḗr, from Proto-Indo-European ǵʰwer- — wild; wild animal.

Ancestry of “thero-”, step by step

StepLanguageWordMeaning
1Ancient Greekθήρa wild beast, beast of prey, especially a lion;...
2Proto-Hellenickʷʰḗrwild beast
3Proto-Indo-Europeanǵʰwer-wild; wild animal

Words derived from “thero-

Every word from Proto-Indo-European ǵʰwer-Every word from Proto-Hellenic kʷʰḗrEvery word from Ancient Greek θήρ