ljubitelja
Ljubitelj is a noun used in Croatian, Serbian, and Bosnian to mean a lover, admirer, or enthusiast. The form ljubitelja is the genitive singular of ljubitelj, and it also serves as the accusative singular in certain constructions. The term can refer to someone who loves or has a strong interest in a subject, hobby, or activity, not only in the romantic sense but also as a connoisseur or fan.
Etymology and morphology: the word is built from the root ljub- (love) plus the agentive suffix -itelj,
Usage: in everyday language, ljubitelj denotes a person with a notable interest or expertise in a field.
Gender and inflection: the masculine form is ljubitelj; feminine form is ljubiteljica; plural nominatives are ljubitelji