Where does “colobrina” come from?

colobrina (Catalan) comes from Catalan colobra, from Vulgar Latin colobra, from Latin colubra, from Latin -a, from Proto-Italic -ā, from Proto-Indo-European -éh₂.

colobrina (Catalan): culverin

Definitions

culverin

Ancestry of “colobrina”, step by step

Step	Language	Word	Meaning
1	Catalan	colobra	a non-venomous snake
2	Vulgar Latin	colobra	—
3	Latin	colubra	a female snake, serpent; snake, serpent
4	Latin	-a	suffixed to the roots of verbs, forms agent...
5	Proto-Italic	-ā	Forms masculine agent nouns from prefixed or compounded bases
6	Proto-Indo-European	-éh₂	—

Every word from Proto-Indo-European -éh₂ →Every word from Latin -a →Every word from Latin colubra →