a spelunker, technically, is a person who goes in caves. Originally derived from the Latin spelunca, (and the related Greek speleios), it comes from the Middle English word, spelunk, meaning cave or grotto. The word, spelunk, apparently went out of common use about 1600, though the adjective, speluncar (pertaining to caves) continued into the mid-19th Century. The name of the French bulletin of Le Societe de Speleologie*--founded by Edouard-Alfred Martel in 1895--was Spelunca. The first modern usage of spelunker in America was probably that reported by Clay Perry in Underground New England in 1939, describing a group of men and boys engaged in "a more or less systematic study of the caves and old mines of the area" who called themselves Spelunkers. Life magazine in the early 1940's may have been the first widespread use of the term in print in an article named, "Life Goes Spelunking." Through the 1950's, spelunker was apparently used as the generic term--with no good or bad connotations. A movie shown at the 1955 NSS Convention by William Hulstrunk, was entitled, "The Spelunkers." The MSM (Missouri School of Mines) Spelunker's Club was founded during this era, and the name continues to be used by that MSS grotto. Other popular publications of the '50s refer to spelunkers and spelunking without the slightest blush.
Sometime in the 1960s (according to Joe Walsh, and probably during an earlier upsurge of interest in venturing underground), spelunker began to take on the connotation of rank amateur, while those "in the know" but not degreed scientists began to refer to themselves as cavers.
You must be one of those elitist "cavers.