cor·po·rate / ˈkôrp(ə)rət/ • adj. of or relating to a corporation, esp. a large company or group. ∎  Law (of a company or group of people) authorized to act as a single entity and recognized as such in law. ∎  of or shared by all the members of a group: the service emphasizes the corporate responsibility of the congregation.• n. a corporate company or group.DERIVATIVES: cor·po·rate·ly adv.

corporate forming a corporation XV; corporeal, belonging to the body politic XVII. — L. corporātus, pp. of corporāre fashion into or with a body, collect, f. corpor-; see CORPUS, -ATE 2.
So corporation †incorporation XV; body of persons, esp. one formally incorporated XV; (large) abdomen XVIII (cf. the obs. use of corporate for ‘corpulent’)

CORPORATE

Pertaining to or possessing the qualities of a corporation, a legal entity created—pursuant to state law—to serve the purposes set out in its certificate of incorporation.

A corporate officer is an individual who is charged with the management of a corporation by virtue of a position as its president, vice president, treasurer, or secretary.