“That will do for the nonce, but we'll need a better answer for the long term.”
“I had thought that the term was a nonce, but it seems as if it's been picked up by other authors.”
“1989 "assorted nonces, ponces and murderers, 'the worst men in the world' [...] on the nonce wing, where the child-killers, molesters and various perverts have to be protected from the other prisoners." (New Statesman, New Society, Volume 2, Statesman & Nation Publishing Company Limited)”