Where does “eruga” come from?

eruga (Old Occitan) comes from Latin eruca, from Proto-Indo-European ǵʰer(s)-uk-eh₂, from Proto-Indo-European ǵʰers- — stiff; surprised.

Ancestry of “eruga”, step by step

StepLanguageWordMeaning
1Latinerucacaterpillar; colewort, rocket
2Proto-Indo-Europeanǵʰer(s)-uk-eh₂—
3Proto-Indo-Europeanǵʰers-stiff; surprised

Words derived from “eruga”

Every word from Proto-Indo-European ǵʰers- →Every word from Proto-Indo-European ǵʰer(s)-uk-eh₂ →Every word from Latin eruca →
eruga — Etymology, Origin & Word History | Etymology Explorer