the.com/escalation

means A rise in the intensity, scale, or seriousness of a conflict or situation, usually in stages rather than all at once.

from Born from 'escalator' — the moving staircase patented in the early 1900s, its name itself built from 'scala,' Latin for ladder or steps. By the mid-20th century, Cold War strategists seized on 'escalate' as a grim metaphor for conflicts climbing step by step toward disaster, each rung higher and harder to climb down from. A word for a convenient machine became a word for the arms race.