Where does “cubiturus” come from?

cubiturus (Latin) comes 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 “cubiturus”, step by step

StepLanguageWordMeaning
1Latincubōto lie down, recline
2Proto-Italickubāōto lie down
3Proto-Indo-Europeanḱewb-briar, thorn
4Proto-Indo-Europeanḱew-skin, colour of the skin; to shine; bright; to...
5Proto-Indo-Europeangʷṓwscattle
Every word from Proto-Indo-European gʷṓws →Every word from Proto-Indo-European ḱew- →Every word from Proto-Indo-European ḱewb- →