aptitude
/ˈæptɪtjuːd/noun
1- a natural ability to do something天资, 才能：
he had a remarkable aptitude for learning words
他在学单词方面有惊人天资
mass noun the staff show aptitude for managerial responsibility.工作班子显示了管理工作上的能力。
1.1
- a natural tendency自然的倾向, 习性：
his natural aptitude for failure.
他成事不足、败事有余的习性。
词源
late Middle English: via Old French from late Latin aptitudo, from aptus （see APT）.