8 letters · 13 points in Scrabble
noun a rate that is rapid
originEtymology tree Proto-Indo-European *kel-der. Latin celer Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Proto-Italic *-tāts Latin -tās Latin celeritāsder. Old French celeriteeder. English celerity From Old French celeritee (compare French célérité), from Latin celeritas, from celer (“fast, swift”).
Etymology from Wiktionary, CC BY-SA 3.0