incantyoudaoicibaDictYouDict[incant 词源字典]
"Chant or intone", Mid 16th century (in the sense 'use enchantment on'): from Latin incantare 'to chant, charm', from in- (expressing intensive force) + cantare 'sing'. The current sense dates from the mid 20th century.[incant etymology, incant origin, 英语词源]