Where does “dorsal” come from?

dorsal (Middle English) comes from Medieval Latin dorsalis, from Latin dorsum, from Proto-Italic dorsom.

Ancestry of “dorsal”, step by step

StepLanguageWordMeaning
1Medieval Latindorsalisof or relating to the back; dorsal; of or...
2Latindorsumback, part of the body between the neck and...
3Proto-Italicdorsom

Words derived from “dorsal

Every word from Proto-Italic dorsomEvery word from Latin dorsumEvery word from Medieval Latin dorsalis