the.com/professional
Someone paid to do well what amateurs do badly for free and for joy.
means A person who does something as a paid occupation, ideally with competence and standards to match.
from From Latin professio, a public declaration — originally the vows you professed when entering a religion or guild, swearing you actually knew the craft.
Original meaningA solemn religious vow, not a paycheck.
The big threeLaw, medicine, divinity were the first professions.
Quiet insultCalling work professional implies others are amateur hour.