Confiteor

·noun A form of prayer in which public confession of sins is made.

confiteor
confĭtĕor, fessus, 2 (arch. inf. confiterier, Plaut. Cist. 1, 3, 22), v. dep. [fateor], to acknowled...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
confiteor
cōnfiteor fessus, ērī, dep.com- + fateor, to acknowledge, confess, own, avow, concede, allow, gran...

An Elementary Latin Dictionary