12 letters · 17 points in Scrabble
noun the internal skeleton; bony and cartilaginous structure (especially of vertebrates)
originEtymology tree Proto-Indo-European *h₁n̥dóm Proto-Hellenic *éndon Ancient Greek ἔνδον (éndon)der. English endo- English skeleton English endoskeleton From endo- + skeleton.
Etymology from Wiktionary, CC BY-SA 3.0