Where does “cardinālātus” come from?

cardinālātus (Latin) comes from Latin cardinālis, from Latin cardō, from Latin carduus, from Proto-Indo-European ḱers- — to run.

Ancestry of “cardinālātus”, step by step

Step	Language	Word	Meaning
1	Latin	cardinālis	of or pertaining to a door hinge
2	Latin	cardō	hinge (of a door or gate), usually a pivot and socket in Roman times
3	Latin	carduus	a wild thistle; the artichoke
4	Proto-Indo-European	ḱers-	to run