pentecoster

Meanings

1. An officer who commands fifty men, particularly (historical) in the Spartan army.

Etymology

Learned borrowing from Ancient Greek πεντηκοστήρ (pentēkostḗr), from πεντηκοστύς (pentēkostús, “pentekostys”), from πεντηκοστός (pentēkostós, “fiftieth”).