7 letters · 12 points in Scrabble
adjective lasting through an entire day
adverb during the entire day
originEtymology tree Proto-Indo-European *dʰegʷʰ-? Proto-Germanic *dagaz Proto-West Germanic *dag Old English dæġ Middle English day English day English -long English daylong From day + -long.
Etymology from Wiktionary, CC BY-SA 3.0