6 letters · 13 points in Scrabble
originEtymology tree Proto-Indo-European *nókʷts Proto-Germanic *nahts Proto-West Germanic *naht Proto-West Germanic *nahti Old English niht Middle English nyght English night Old English -iġ Middle English -y English -y English nighty From night + -y (suffix forming colloquialisms).
Etymology from Wiktionary, CC BY-SA 3.0