mag
UK[mæɡ]US[mæɡ]
n
A person who is very knowledgeable and enthusiastic about a specific subject or activity; a fan or expert.
n
(informal) A magazine.
Etymology
The word 'mag' is a modern English abbreviation, originating in the 19th century as a clipped form of 'magazine'. The term 'magazine' itself has a fascinating journey, entering English from French magasin (meaning 'storehouse'), which came from Italian magazzino, and ultimately from Arabic makhāzin, the plural of makhzan ('storehouse'). The semantic shift from a physical storehouse for goods to a periodical publication occurred in the 18th century, based on the metaphor of a publication being a storehouse of information. The clipped form 'mag' retains the core meaning of its source but functions as a casual, informal synonym.
Analysis
The word 'mag' is a simplex clipping, derived by shortening the longer word 'magazine'. As a clipping, it does not contain separable, meaningful morphemes in its current form.
Examples
He's a real computer mag and can fix any hardware problem.
I picked up the latest fashion mag at the airport.
The article in the photography mag inspired her to try a new technique.