'To assume the calotte' definitions:

Definition of 'To assume the calotte'

From: GCIDE
  • Calotte \Ca*lotte"\, Callot \Cal"lot\, n. [F. calotte, dim. of cale a sort of flat cap. Cf. Caul.] A close cap without visor or brim. Especially: (a) Such a cap, worn by English serjeants at law. (b) Such a cap, worn by the French cavalry under their helmets. (c) Such a cap, worn by the clergy of the Roman Catholic Church. [1913 Webster]
  • To assume the calotte, to become a priest. [1913 Webster]