6 letters · 9 points in Scrabble
adjective of or contained in or performing the function of the veins
originMorphologically vein + -ous, which is a borrowing from Latin vēnōsus (“full of veins, veiny”), from vēna (“a blood vessel, vein”) + -ōsus (“-ous, -ose”, adjectival suffix). Doublet of venose.
Etymology from Wiktionary, CC BY-SA 3.0