14 letters · 18 points in Scrabble
noun weak or sickly person especially one morbidly concerned with his or her health
adjective of or relating to or characteristic of a person who is a valetudinarian
originFrom Latin valētūdin- + -arian, from oblique stem of Latin valētūdō, from valeō + -tūdō. By surface analysis, valetude + -arian.
Etymology from Wiktionary, CC BY-SA 3.0