Where does “espinho” come from?

espinho (Portuguese) comes from Latin spinus, from Latin spīna, from Proto-Italic speinā, from Proto-Indo-European spēy- — to stretch; thrive; succeed.

espinho (Portuguese): thorn; any sharp point; a thorn which grows from...

Definitions

thorn; any sharp point; a thorn which grows from...

Ancestry of “espinho”, step by step

Step	Language	Word	Meaning
1	Latin	spinus	thorn-bush, black-thorn, sloe-tree
2	Latin	spīna	a thorn or a thorny tree or shrub, such as whitethorn, hawthorn, or blackthorn
3	Proto-Italic	speinā	thorn
4	Proto-Indo-European	spēy-	to stretch; thrive; succeed

Every word from Proto-Indo-European spēy- →Every word from Proto-Italic speinā →Every word from Latin spīna →