Dictionary entry

πρόδρομος

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament with Strong's

πρό-δρομος, -ον

(< προτρέχω), [in LXX: Nu 13:21 (20), Is 28:4 (בּכר), Wi 12:8*;]

running forward, going in advance. As subst., ὁ π., an advance guard, forerunner: He 6:20.†