7 letters · 12 points in Scrabble
noun a painful burning sensation in the chest caused by gastroesophageal reflux (backflow from the stomach irritating the esophagus); symptomatic of an ulcer or a diaphragmatic hernia or other disorder
originFrom Ancient Greek πύρωσις (púrōsis, “burning”), from πῦρ (pûr, “fire”) + -σις (-sis, verbal noun suffix).
Etymology from Wiktionary, CC BY-SA 3.0