Depreciation refers to the rate of fall in the value of a
country's currency when compared to another country's
currency.
When a country faces depreciation and it's currency becomes
cheaper than other country, imports become too costly while the
exports increases as they become cheaper.
Depreciation in one country discourages other countries to
export which decreases the imports.
This increases the number of exports and people prefer using
domestically produced goods as they are more cheaper than the
imported goods.
With increased aggregate demand for domestic goods, the country
increases production level which leads to a rise in the nation's
output.