- pentecostys
- Pentecosty Pen`te*cos"ty, n.; pl. {Pentecosties}. [Gr. ?, fr. ? the fiftieth, ? fifty.] (Gr. Antiq.) A troop of fifty soldiers in the Spartan army; -- called also {pentecostys}. --Jowett (Thucyd. ). [1913 Webster]
The Collaborative International Dictionary of English. 2000.