Word: pterna
Pronounce: pter'-nah
Strongs Number: G4418
Orig: of uncertain derivation; the heel (figuratively):--heel.
Use: Noun Feminine
Heb Strong: H6119
1) the heel (of the foot)
2) to lift up the heel against one
2a) to injure one by trickery (figure borrowed either from kicking, or from a wrestler tripping up his antagonist)