tact
/tækt/noun
mass noun
- adroitness and sensitivity in dealing with others or with difficult issues（交往、办事的）机敏; 圆通：
the inspector broke the news to me with tact and consideration.
检察员机敏谨慎地向我透露了这个消息。
词源
mid 17th cent. (denoting the sense of touch)： via French from Latin tactus 'touch, sense of touch', from tangere 'to touch'.