12 letters · 20 points in Scrabble
originPIE word *h₁ésh₂r̥ Learned borrowing from New Latin exsanguinātus (“depleted of blood, exsanguinated; lacking blood, bloodless”), see -ate (verb-forming suffix). Exsanguinātus is a participial adjective formed on ex- (“out, from”) + sanguī̆s (sanguin-) (“blood”) + -ātus.
Etymology from Wiktionary, CC BY-SA 3.0