Where does “spine” come from?
spine (Italian) comes from Italian spina, from Latin spīna, from Proto-Italic speinā, from Proto-Indo-European spēy- — to stretch; thrive; succeed.
spine (Italian): plural of spina
Ancestry of “spine”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Italian | spina | thorn; spine, prickle; plug |
| 2 | Latin | spīna | — |
| 3 | Proto-Italic | speinā | — |
| 4 | Proto-Indo-European | spēy- | to stretch; thrive; succeed |