C16: from Old Italian scalada, from scala a ladder; see scale3
escalade in British English
(ˌɛskəˈleɪd)
noun
1.
an assault by the use of ladders, esp on a fortification
verb
2.
to gain access to (a place) by the use of ladders
Derived forms
escalader (ˌescaˈlader)
noun
Word origin
C16: from French, from Italian scalata, from scalare to mount, scale3
scalade in American English
(skəˈleid)
noun
archaic
escalade
Word origin
[1585–95; var. of escalade]This word is first recorded in the period 1585–95. Other words that entered Englishat around the same time include: aberration, filament, keyhole, scuff, switch