quinquevir

from The Collaborative International Dictionary of English v.0.48

Quinquevir \Quin"que*vir\, n.; pl; E. {Quinquevirs}, L.
   {Quinqueviri}. [L., fr. quinque Five + vir man.] (Bot.
   Antiq.)
   One of five commissioners appointed for some special object.
   [1913 Webster]