Where does “dorsospinal” come from?

dorsospinal (English) comes from English spinal, from Latin spīnālis, from Latin spīna, from Proto-Italic speinā, from Proto-Indo-European spēy- — to stretch; thrive; succeed.

Ancestry of “dorsospinal”, step by step

StepLanguageWordMeaning
1EnglishspinalOf or relating to the spine; Having a pithed...
2Latinspīnālisof or belonging to the spine; spinal
3Latinspīnaa thorn or a thorny tree or shrub, such as whitethorn, hawthorn, or blackthorn
4Proto-Italicspeināthorn
5Proto-Indo-Europeanspēy-to stretch; thrive; succeed
Every word from Proto-Indo-European spēy- →Every word from Proto-Italic speinā →Every word from Latin spīna →