In-grē′di-ent, n.

noun

(77), n. [Fr. ingrédient, It. & Sp. ingrediente, from Lat. ingrediens, entering into, p. pr. of ingredi, ingressus, to go into, to enter, from prefix in and gradi, to walk, go.] That which enters into a compound, or is a component part of any compound or mixture; an element.

By way of analysis we may proceed from compounds to ingredients. Newton.