Is it ensure, insure, or assure?
1834, "lively, nimble," American English, from northern British dialectal kipper "nimble, frisky," the origin of which is obscure.
An occasional, nonaddicted user of narcotics; joy-popper: Amy, who is only a ''chipper,'' wanted to meet somebody
[1960s+ Narcotics; fr chip, ''small quantity, bit'']
Energetic and jaunty; lively; perky
[1830s+; fr British dialect kipper]