Where does “numerus currens” come from?

numerus currens (Latin) comes from Latin currēns, from Latin currō, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

numerus currens (Latin): serial number

Definitions

serial number

Ancestry of “numerus currens”, step by step

numerus currens traces back through two separate lines of ancestry.

via Latin currēns

Step	Language	Word	Meaning
1	Latin	currēns	running
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

via Latin numerus

Step	Language	Word	Meaning
1	Latin	numerus	number; collection, quantity; rank, position
2	Proto-Italic	nomezos	—
3	Proto-Indo-European	némesos	—

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