7 letters · 7 points in Scrabble
noun pit viper with horny segments at the end of the tail that rattle when shaken
noun a railroad train consisting of freight cars
originEtymology tree English rattle Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English rattler From rattle + -er.
Etymology from Wiktionary, CC BY-SA 3.0