Where does “secubans” come from?

secubans (Latin) comes from Latin secubo, from Latin cubō, from Proto-Italic kubāō, from Proto-Indo-European ḱewb-, from Proto-Indo-European ḱew-, from Proto-Indo-European gʷṓws — cattle.

Definitions

Ancestry of “secubans”, step by step

Step	Language	Word	Meaning
1	Latin	secubo	I sleep alone; I live alone
2	Latin	cubō	to lie down, recline
3	Proto-Italic	kubāō	to lie down
4	Proto-Indo-European	ḱewb-	briar, thorn
5	Proto-Indo-European	ḱew-	skin, colour of the skin; to shine; bright; to...
6	Proto-Indo-European	gʷṓws	cattle

Every word from Proto-Indo-European gʷṓws →Every word from Proto-Indo-European ḱew- →Every word from Proto-Indo-European ḱewb- →