Tonsorial
Definition:
. . .of or relating to a barber or the work of a barber
tonsorial - adjective | tahn-SOR-ee-ul
Example:
Jacob was very good at tonsorial work.
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I posted this because I thought it probably had to do with tonsils! Tonsils is a noun, while tonsorial is an adjective. Even though we might think the two go together (think "shave and a haircut"), the two don't have common origins at all!
The below diagram gave me a better view of where tonsorial originated.