superquality

adjective

su·​per·​qual·​i·​ty ˌsü-pər-ˈkwä-lə-tē 

: very superior to other things of the same kind : of exceptional quality

superquality gems

… in the select stores by 1:00, ready to be purchased by … the families wealthy enough to afford this superquality item …

—Christopher Tilghman

… lean manufacturing system design that can deliver, on time to the customer, superquality goods at the lowest possible cost in a flexible way.

—J. T. Black and Ronald A. Kohser

Word History

First Known Use

1849, in the meaning defined above