Escalation (noun)

1. The process of increasing in intensity, magnitude, or size.
2. An increase in the level or extent of something, especially an unpleasant or problematic situation.

Origin:

Late 17th century from french escalade, from escalier "a staircase", from spanish escalera, based on latin scala "a ladder".

Examples:

1. The escalation of the conflict has caused much concern among world leaders.
2. The government was forced to intervene in order to prevent further escalation of violence.
3. The escalation of drug prices is a major issue facing the public.
4. The escalation of the conflict has led to the displacement of hundreds of thousands of people.
5. The escalation of tensions between the two countries has raised fears of a full-blown war.