τειχομαχέω
From LSJ
English (LSJ)
A fight the walls, i.e. conduct siege operations, Hdt.9.70, Th.7.79, X.HG1.1.14, etc.; τ. τινί Ar.Nu.481; πρὸς τοὺς πολεμίους Plu.Alc.28; τειχομαχεῖν δυνατοί skilled in conducting sieges, i.e. good engineers, Th.1.102: perh. of defending a wall, App. Hann.92.