Centuried comes from century (Latin centuria, 'a hundred', from centum, 'hundred') + the adjectival suffix -ed. The historical trail runs through centuria in Latin and centum in Latin. Morphologically, centuried is transparent: it draws on century (Latin centuria, 'a hundred', from centum, 'hundred') + the adjectival suffix -ed. Used as an adjective, centuried now means "aged or enduring through centuries; centuries old", so the present definition can be read against the older forms and meanings. The same lexical family is also visible in related forms such as century and centurial. The result is a borrowed or transmitted form whose modern spelling carries a compact record of its route into English.