Panegyris

A panegyris (Ancient Greek: πανήγυρις "gathering"), is an Ancient Greek general, national or religious assembly. Each was dedicated to the worship of a particular god. It is also associated with saint days and holy festivals.

Πανήγυρις is also transliterated as panegyry, and in turn, some sources define panegyry to be a panegyric. A panegyric is a formal public speech. This could be a separate usage of panegyry, an obsolete usage, or simply an error.

...
Wikipedia