What's the difference between nonesuch and nonsuch?
Nonesuch
Definition:
(n.) A person or thing of a sort that there is no other such; something extraordinary; a thing that has not its equal. It is given as a name to various objects, as to a choice variety of apple, a species of medic (Medicago lupulina), a variety of pottery clay, etc.
Example Sentences:
(1) This week, Reich and his musicians performed three nights of concerts with the Philip Glass Ensemble at the Brooklyn Academy of Music, at a festival in honor of the 50 th anniversary of Nonesuch Records.
(2) Jonny Greenwood's album with Krzysztof Penderecki is released on Nonesuch on 12 March.