deglutition
The act or process of swallowing.
countable, uncountable
[T]he action of the gullet, that is deglutition, is performed and conſummated, the action being animall and partly Naturall.
Where it comes from
Borrowed from French déglutition or from Late Latin dēglūtītiō, from Latin dēglūtīre, dēgluttīre + -tiō (suffix forming nouns relating to actions or the results of actions). Dēgluttīre is derived from dēgluttiō (“to swallow down”), from dē- (prefix meaning ‘from, off’) + gluttiō (“to gulp down, swallow”). By surface analysis, de- (“down”) + Latin glut- + -ite + -ion.
Adapted from the Wiktionary entry deglutition (CC BY-SA 4.0).