Where does “purulentus” come from?

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

Ancestry of “purulentus”, step by step

Step	Language	Word	Meaning
1	Latin	-ulentus	adjective-forming suffix meaning abounding in,...
2	Latin	-entus	adjective-forming suffix meaning abounding in,...
3	Latin	cruentus	bloody in its various senses, "particularly:"
4	Latin	cruor	blood, gore; murder, bloodshed
5	Proto-Indo-European	krewh₂-	blood outside the body

Every word from Proto-Indo-European krewh₂- →