τειχομαχέω
From LSJ
ἀσκέειν, περὶ τὰ νουσήματα, δύο, ὠφελέειν, ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
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.
German (Pape)
[Seite 1081] um die Mauern oder um die Burg kämpfen, bes. belagern; Her. 9, 70; Ar. Nubb. 473; Thuc. 1, 102. 7, 79, Xen. Hell. 1, 1, 14; Sp., wie Hdn. 8, 4, 18.