surmaster
/ˈsɜrˌmæs.tər/Definitions
1. noun
A person or thing that surpasses or exceeds a master in skill, knowledge, or ability.
“She proved to be a surmaster in solving complex mathematical problems.”
2. verb
To surpass or excel a master in skill, knowledge, or ability.
“The new employee was able to surmaster his colleagues in just a few weeks.”