society > armed hostility > warrior > soldier > leader or commander > [noun] > of 50 (6)
= quinquagenarian, n. 1. Obsolete.
A commander of fifty. A commander of fifty soldiers (cf. penteconter, n.1). Obsolete.
A soldier or leader who commands fifty men. Obsolete. rare.
In ancient Greece: a commander of a troop of fifty men. Cf. pentecontarch, n.
An officer in ancient Greece having command of fifty men; = penteconter, n.1