Etymology tree Ancient Greek ἀσκητῐκός (askētĭkós)der. Medieval Latin asceticusbor. English ascetic Proto-Italic *-ālis Latin -ālisbor. Old French -albor. ▲ Latin -ālis Old French -elbor. ▲ Latin -ālisbor. Middle English -al English -al English ascetical From ascetic + -al.