9 letters · 13 points in Scrabble
noun sudden prostration due to exposure to the sun or excessive heat
originEtymology tree Proto-Indo-European *sóh₂wl̥der. Proto-Germanic *sunnô Proto-Germanic *sunnǭ Proto-West Germanic *sunnā Old English sunne Middle English sonne English sun English stroke English sunstroke From sun + stroke.
Etymology from Wiktionary, CC BY-SA 3.0