Strong's G5286 — ὑποπόδιον (noun)
hupopodion (hoop-op-od'-ee-on) n.
1. something under the feet, i.e. a foot-rest (figuratively)
[neuter of a compound of G5259 and G4228]
KJV: footstool 
Root(s): G5259, G4228 
Hebrew root: πούς
Occurrences: 7