9 letters · 20 points in Scrabble
noun one thousand periods per second
originEtymology tree English kilo- Proto-Indo-European *kʷel- Proto-Indo-European *kʷékʷlos Ancient Greek κῠ́κλος (kŭ́klos)der. Late Latin cyclusbor. Middle English cicle English cycle English kilocycle From kilo- + cycle.
Etymology from Wiktionary, CC BY-SA 3.0