Strong's G5069 — τετράδιον (noun)
tetradion (tet-rad'-ee-on) n.
1. a quaternion or squad (picket) of four Roman soldiers
[neuter of a presumed derivative of tetras (a tetrad]
KJV: quaternion 
Root(s): G5064 
Hebrew root: τέσσαρες
Occurrences: 1