Where does “virulent” come from?

virulent (Dutch) comes from French virulent, from Latin virulentus, from Latin -ulentus, from Latin -entus, from Latin cruentus, from Latin cruor, from Proto-Indo-European krewh₂- — blood outside the body.

Ancestry of “virulent”, step by step

StepLanguageWordMeaning
1Frenchvirulentvirulent
2Latinvirulentuspoisonous
3Latin-ulentusadjective-forming suffix meaning abounding in,...
4Latin-entusadjective-forming suffix meaning abounding in,...
5Latincruentusbloody in its various senses, "particularly:"
6Latincruorblood, gore; murder, bloodshed
7Proto-Indo-Europeankrewh₂-blood outside the body

Words derived from “virulent

Every word from Proto-Indo-European krewh₂-Every word from Latin -ulentusEvery word from Latin -entus