professionize
/prəˈfɛʃ(ə)nʌɪz/ /prəˈfɛʃənʌɪz/rare
verb
1 [no object] To follow or exercise a profession.
2 [with object] To turn (an activity) into a profession; to make professional.
Origin
Mid 19th century. From profession + -ize. Compare earlier professionalize.