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

词根词缀：trepid-

【来源及含义】Latin: agitated, alarmed, restless, anxious, solicitous; fear, fearful, fright; terror; consternation

【同源单词】intrepid, intrepidity, intrepidly, intrepidness, trepid, trepidant