IPA: /pɒnˈtɪfɪkeɪt/
KK: /pɑnˈtɪfɪˌkeɪt/
To speak or express opinions in a way that is considered authoritative or dogmatic, often without considering other viewpoints.
During the meeting, he began to pontificate about the importance of teamwork.
The position or period during which a religious leader, especially a pope, holds office.
During his pontificate, many important changes were made in the church.
Pontificate → It is formed from "pontifex" (from Latin, meaning bridge-maker or high priest) and the suffix "-ate" (indicating to perform an action). The word "pontificate" means to perform the duties or speak in the manner of a high priest, often implying speaking in a dogmatic or authoritative way.
Think of a 'bridge-maker' ('pontifex') who speaks with authority — that's why pontificate means to speak in a dogmatic manner.