stabilize
v.v. to stop something from changing or getting worse. You use this when you want to make a situation steady, calm, or safe.
v. to make or become unlikely to change, fail, or decline. Transitive when describing an external action to fix a system; intransitive when a situation reaches a steady state.
The doctor worked hard to stabilize the patient.
The government raised interest rates in an attempt to stabilize the national currency after months of high inflation.
After several days of volatile trading, the stock market began to stabilize as investors regained confidence in the central bank's long-term recovery plan.
From stable + -ize.
The verb is both transitive and intransitive. It often collocates with 'economy', 'prices', or 'condition'.