aficionado
UK[əˌfɪsjəˈnɑːdəʊ]US[əˌfɪʃəˈnɑːdoʊ]
n
a person who is very knowledgeable and enthusiastic about an activity, subject, or pastime; a devotee or fan.
Etymology
the english word 'aficionado' is borrowed directly from spanish, where it functions as the past participle of the verb 'aficionar', meaning 'to inspire affection'. this spanish verb itself derives from the noun 'afición', meaning 'affection' or 'fondness', which traces back to latin 'affectiōnem', the accusative form of 'affectiō' (a state of being acted upon, disposition, affection). the latin root is from 'afficere', meaning 'to affect, influence', composed of 'ad-' (to) and 'facere' (to do, make). the semantic journey moved from the general sense of 'being affected' to 'fondness', and specifically in spanish to a passionate enthusiasm for something like bullfighting, which english then broadened to any fervent enthusiast.
Analysis
this word is a direct loanword from spanish and is not productively segmented using english morphemes. it is treated as a simplex form in english.
Examples
he was a true jazz aficionado, with an extensive collection of rare vinyl records.
the conference was attended by aficionados of fine wine from around the world.
as a cinema aficionado, she could discuss the works of obscure directors for hours.