inchoation \in-koh-EY-shuhn\,
noun:
a beginning; origin.
Three things cannot but exist towards all animated beings from the nature of divine justice; co-sufferance in the circle of inchoation, because without that none could attain the perfect knowledge of any thing…
-- John Williams, "The Ecclesiastical Antiquities of the Cymry," 1844
Three things are necessary in the Circle of Inchoation; the least of all animation, and thence the beginning…
-- Robert Southey, "Notes to Madoc in Wales," 1805
Inchoation came to English in the 1500s from the Late Latin inchoātiōn-.
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