The storyAncient Greek · derived fromκλειστός“closed”English todaycleistogamicFrom Ancient Greek κλειστός (kleistós, “closed”) + -ic.Words from the same rootsAncient Greekκλειστός all →cleistocarpcleistogamouscleistogamycleistotheciumphysoclistEtymology from Wiktionary, CC BY-SA 4.0.