6 letters · 9 points in Scrabble
noun the posterior part of a human (or animal) body from the neck to the end of the spine
noun the back of the body of a vertebrate or any analogous surface (as the upper or outer surface of an organ or appendage or part)
originEtymology tree Latin dorsumlbor. English dorsum Learned borrowing from Latin dorsum (“the back”).
Etymology from Wiktionary, CC BY-SA 3.0