Where does “excursor” come from?

excursor (Latin) comes from Latin excurrō, from Latin currō, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

excursor (Latin): skirmisher, scout, spy

Definitions

skirmisher, scout, spy

Ancestry of “excursor”, step by step

Step	Language	Word	Meaning
1	Latin	excurrō	to run out
2	Latin	currō	to run
3	Proto-Indo-European	ḱer-	to grow, to make grow, to nourish; to plait,...
4	Proto-Indo-European	kr̥-	to turn, to bend
5	Proto-Indo-European	ker-	army

Every word from Proto-Indo-European ker- →Every word from Proto-Indo-European kr̥- →Every word from Proto-Indo-European ḱer- →