词根词缀：bene-, ben-, beni-

【来源及含义】Latin: good, well

【同源单词】Ab officio et beneficio, Ad captandam benevolentiam, Ad vindictam tardus, Bene tenax, Bene vale, benedicence

词根词缀：genus, genesis-, -gen, -gene, -genesis, -genetic, -genic, -geny, -genous

【来源及含义】Latin: birth, beget; descent, origin, creation, inception, beginning, race, sort; kind, class

【同源单词】aerospace engineering, agenesis, autogenous, benign, benignant, benignantly

词根词缀：-ity

【来源及含义】Latin: suffix used to form abstract nouns expressing act, state, quality, property, or condition corresponding to an adjective

【同源单词】abnormality, absorbability, acclivity, acerbity, acridity, acrity