masterwork

[ mas-ter-wurk, mah-ster- ]
/ ˈmæs tərˌwɜrk, ˈmɑ stər- /

noun

Origin of masterwork

First recorded in 1600–10; master + work
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for masterwork