词根词缀：duro-, dur-, dura-

【来源及含义】Latin: hard [as wood], lasting; thick, tough

【同源单词】dour, dourly, dourness, dura mater, durability, durable

词根词缀：mater-, matri-, matro- matr-

【来源及含义】Latin: mother, mama, mom; mum [British]

【同源单词】alma mater, dura mater, mater, materfamilias, maternal aunt, maternal dystocia