n. 起初, 发端, 肇始

Inchoation \In`cho*a"tion\, n. [L. inchoatio, incohatio.]
Act of beginning; commencement; inception.

The setting on foot some of those arts, in those parts,
would be looked on as the first inchoation of them.
--Sir M. Hale.

It is now in actual progress, from the rudest
inchoation to the most elaborate finishing. --I.
Taylor.