crayon (n.)youdaoicibaDictYouDict[crayon 词源字典]
1640s, from French crayon "pencil" (16c.), originally "chalk pencil," from craie "chalk," from Latin creta "chalk, pipe-clay," which is of unknown origin. Not now considered to mean "Cretan earth," as once was believed.[crayon etymology, crayon origin, 英语词源]