A high priest. Especially:

One of the sacred college, in ancient Rome, which had the supreme jurisdiction over all matters of religion, at the head of which was the Pontifex Maximus.

The pope.

Origin: F. Pontife, L. Pontifex, -ficis; pons, pontis, a bridge (perhaps originally, a way, path) + facere = to make. Cf. Pontoon.

(01 Mar 1998)