idiosyncrasy
词根词缀：
idiograph n. （组织等的）标记；签名
idio 特殊的；个人的 + graph 写，图 → 个人专用的图 → 标记
idiom n. 惯用语；成语
idio 特殊的；个人的 + m → 个人经常说的话 → 惯用语
idiomatic adj. 惯用语的
idiom 惯用语；成语 + atic 属于…的 → 惯用语的
idiosyncrasy n. 气质；癖好
idio 特殊的；个人的 + syn 共同 + crasy → 个人特殊行为 → 癖好
数据来源：新东方英语词汇速记大全
相关例句：
The subject idiosyncrasy is mainly manifesting self-consciousness, initiative and creativity.
其主体性主要表现为自觉性、能动性和创造性。
Dear, your idiosyncrasy will be found by someone, he'll bring you home, gave you the money he earned and feed by meals you cooked.
亲爱的，你的特质总有一天会由一个倒霉蛋发现的。他会把你带回家，把挣的钱都交给你，然后让你煮饭给他吃。
Eating no meat was Amy's idiosyncrasy.
不吃肉是艾美的习惯。
By the reason of their special function, movie poster covers both idiosyncrasy of advertisement and art; best embodies the characteristics of graphic design with superior purpose and directionality.
而对其进行研究是因为电影海报的特殊功能性，它兼具广告与艺术的特质，最能体现平面设计的特征，具有极强的目的性和指向性。
This is an idiosyncrasy of fine wine as an asset, which is well worth highlighting.
这是精品葡萄酒作为一种资产的特质，非常值得强调。
The Musical Idiosyncrasy of the Major Painting Art School in the Modern West
西方现代主要流派绘画艺术的音乐性