ESCALADE
escalade
(noun) an act of scaling by the use of ladders (especially the walls of a fortification)
escalade
(verb) climb up and over; “They had to escalade canyons to reach their destination”
Source: WordNet® 3.1
Etymology
Noun
escalade (plural escalades)
An act of scaling walls or fortifications
Verb
escalade (third-person singular simple present escalades, present participle escalading, simple past and past participle escaladed)
(military, dated) To scale the walls of a fortification.
Source: Wiktionary
Es`ca*lade", n. Etym: [F., Sp. escalada (cf. It. scalata), fr. Sp.
escalar to scale, LL. scalare, fr. L. scala ladder. See Scale, v. t.]
(Mil.)
Definition: A furious attack made by troops on a fortified place, in which
ladders are used to pass a ditch or mount a rampart.
Sin enters, not by escalade, but by cunning or treachery.
Buckminster.
Es`ca*lade", v. t. [imp. & p. p. Escaladed; p. pr. & vb. n.
Escalading.] (Mil.)
Definition: To mount and pass or enter by means of ladders; to scale; as,
to escalate a wall.
Source: Webster’s Unabridged Dictionary 1913 Edition