PROFESSIONALISE
professionalize, professionalise
(verb) make professional or give a professional character to; “Philosophy has not always been professionalized and used to be a subject pursued only by amateurs”
professionalize, professionalise
(verb) become professional or proceed in a professional manner or in an activity for pay or as a means of livelihood
Source: WordNet® 3.1
Verb
professionalise (third-person singular simple present professionalises, present participle professionalising, simple past and past participle professionalised)
Alternative spelling of professionalize
Source: Wiktionary