9 letters · 9 points in Scrabble
noun inflammation of one of the paranasal sinuses
originEtymology tree English sinus Proto-Indo-European *-tósder. Ancient Greek -της (-tēs)der. Ancient Greek -ῖτις (-îtis)lbor. New Latin -itisder. English -itis English sinusitis From sinus + -itis.
Etymology from Wiktionary, CC BY-SA 3.0