inception
/ɪnˈsepʃən/noun
in sing.
- the establishment or starting point of an institution or activity（机构, 活动）开业, 开始：
she has been on the board since its inception two years ago.
自从两年前开业起她就是董事会的成员了。
词源
late Middle English: from Latin inceptio （n-）， from incipere 'begin'.