Strong's:πρόγονος an ancestor, (grand-)parentDerivation: from G4266;KJV Usage: forefather, parent. G4266
TBESG:πρόγονοςparent/ancestorG:N-M πρό-γονος, -ον (< προγίνομαι), [in LXX: Refs Est.4:17, Sir.8:4, al. ;] __1. born before. __2. As subst., in pl., οἱ π., ancestors, forefathers: 2Ti.1:3; of living parents (so Plat.), 1Ti.5:4.† (AS)
Thayer:1) born before, older 1a) of ancestors 1b) of a mother 1c) of grandparents 1d) of great-grand parents (if they are still alive)
προγίνομαι proginomai prog-in'-om-ahee From G4253 and G1096; to be already, that is, have previously transpiredKJV Usage: be past.