Where does “spinigrade” come from?

spinigrade (English) comes from English -grade, from Latin gradus, from Proto-Italic graðus, from Proto-Indo-European gʰradʰ-.

spinigrade (English): Moving by means of spines

Definitions

  1. Moving by means of spines

Ancestry of “spinigrade”, step by step

StepLanguageWordMeaning
1English-gradeDescribes a specified way of walking or locomotion, especially according to the limbs or organs utilized
2Latingradusa step, pace; a stage, degree; a rank
3Proto-Italicgraðus—
4Proto-Indo-Europeangʰradʰ-—
Every word from Proto-Indo-European gʰradʰ- →Every word from Proto-Italic graðus →Every word from Latin gradus →
spinigrade — Etymology, Origin & Word History | Etymology Explorer