The cozy, hooded “anoraq” is the garment worn by the Inuit people of the Arctic to protect them against the very harshest weather conditions. In the 1960s the “anorak” became popular in Britain as a style of jacket with a fur-trimmed hood beloved of Mods. The European version was a prototype for the technical clothing that evolved later for mountaineers, sailors, cavers, and other adventurers. At the time, it was innocent of negative associations. Today the word is used pejoratively for an enthusiast interested in information regarded as boring or unfathomable by the rest of us, probably because it’s long been favored by trainspotters.