from The Century Dictionary and Cyclopedia
- n. A bird that sings by night, as the nightingale; specifically, in Ireland, the sedge-warbler, Acrocephalus phragmitis, sometimes called the Irish nightingale.
Sorry, no etymologies found.
One evening Giufà saw a poor man singing behind a door, and thinking he was a night-singer, killed him and carried him home.
I mention the nightingale only to point my remarks upon its American rival, the famous mockingbird of the Southern States, which is also a nightingale, -- a night-singer, -- and which no doubt excels the Old World bird in the variety and compass of its powers.
You are a good night-singer, and may make your fortune as one of the waits. "