verbdialect British, Midlands English, US
1To cheer, gladden; to enliven, animate; to hurry, chivvy.
2To become more cheerful, lively, or animated; to hurry. Usually with up.
Early 19th century; earliest use found in Adiel Sherwood (1791–1879). From peart, variant of pert + -en.
Are You Learning English? Here Are Our Top English Tips