scalade

He tried some small prefatory Siege or scalade of Pesth; could not do it; and came his ways home again, as the best course.

Wentworth starts building batteries, in spite of the rain-deluges; then stops building;—decides to do it by scalade, after all.

See, my lads, yonder are likely to be some short ladders; these we will splice with rope, and so make the scalade!