8 letters · 15 points in Scrabble
noun something transitory; lasting a day
noun anything short-lived, as an insect that lives only for a day in its winged form
originBorrowed from Ancient Greek ἐφήμερᾰ (ephḗmeră), neuter plural form of ἐφήμερος (ephḗmeros).
Etymology from Wiktionary, CC BY-SA 3.0