πρό-δρομος, -ον (προτρέχω) [in LXX: Num.13:21 (20), Isa.28:4 (בִּכּוּר), Wis.12:8 * ;] running forward, going in advance. As subst., ὁ π., an advance guard, forerunner: Heb.6:20.† (AS)
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G4274 — πρόδρομος
prodromos · forerunner · Greek