proficent

As an adjective exemplary is

deserving honour, respect and admiration.

As a noun exemplary is

(obsolete) an example, or typical instance; an exemplar.

Proficent is likely misspelled.

Proficent has no English definition.

As a noun master

is someone who has control over something or someone.

As an adjective master

is masterful.

As a verb master

is {{cx|intransitive|lang=en}} To be a master.