Definition of escalade in English:

escalade

noun

historical
  • The scaling of fortified walls using ladders, as a form of military attack.

    • ‘Ultimately, using the escalade as a form of attack proved too expensive and difficult to implement in all but the weakest castle sieges.’
    • ‘Fresh information revealed that the French were fully prepared to meet an attack on Rochefort, and a council of war decided that any attempt to take it by escalade would be hopeless.’
    • ‘During an escalade a large number of ladders are required.’

Origin

Late 16th century: from French, or from Spanish escalada, escalado, from medieval Latin scalare to scale, climb from Latin scala ladder.

Pronunciation:

escalade

/ˌeskəˈlād/