διέρπω

A. creep or pass through, πῦρ δ., of the ordeal of fire, S. Ant. 265; διά τινος Plu. 2.517a: metaph., τὸ διέρπον τῶν μηχανημάτων Eun. Hist. p.254D.: abs., of disease, spread, Ph. 2.349.