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

Definitions

  1. plural of spina

Ancestry of “spine”, step by step

StepLanguageWordMeaning
1Italianspinathorn; spine, prickle; plug
2Latinspīnaa thorn or a thorny tree or shrub, such as whitethorn, hawthorn, or blackthorn
3Proto-Italicspeināthorn
4Proto-Indo-Europeanspēy-to stretch; thrive; succeed
Every word from Proto-Indo-European spēy- →Every word from Proto-Italic speinā →Every word from Latin spīna →