Classis \Clas"sis\, n.; pl. Classes. [L. See Class, n.]

1. A class or order; sort; kind. [Obs.]

His opinion of that classis of men. --Clarendon.

2. (Eccl.) An ecclesiastical body or judicatory in certain churches, as the Reformed Dutch. It is intermediate between the consistory and the synod, and corresponds to the presbytery in the Presbyterian church.

Source: Webster's Revised Unabridged Dictionary (1913)