fanzine (n.)

"devotee," 1889, American English, originally of baseball enthusiasts, probably a shortening of fanatic, but it may be influenced by the fancy, a collective term for followers of a certain hobby or sport (especially boxing); see fancy (n.). There is an isolated use from 1682, but the modern word likely is a late 19c. formation. Fan mail attested from 1920, in a Hollywood context; Fan club attested by 1930.

Before the close of the republic, an enthusiastic partisan of one of the factions in the chariot races flung himself upon the pile on which the body of a favourite coachman was consumed, and perished in the flames. [W.E.H. Lecky, "A History of European Morals," 1869]

1580s, "warehouse, place for storing goods, especially military ammunition," from French magasin "warehouse, depot, store" (15c.), from Italian magazzino, from Arabic makhazin, plural of makhzan "storehouse" (source of Spanish almacén "warehouse, magazine"), from khazana "to store up." The original sense is almost obsolete. Meaning "cartridge chamber in a repeating rifle" is by 1868; that of "a case in which a supply of cartridges is carried" is by 1892. 

The meaning "periodical journal containing miscellaneous writings" dates from the publication of the first one, Gentleman's Magazine, in 1731, which was so called from earlier use of the word for printed lists of military stores and information, or in a figurative sense, from the publication being a "storehouse" of information (originally of books, 1630s).