mid-15c., probably related to snort (v.) and both probably of imitative origin (compare Dutch snorken, Middle High German snarchen, German schnarchen, Swedish snarka; see snout). Related: Snored; snoring.
mid-14c., "a snort;" c. 1600, "act of snoring," of imitative origin; see snore (v.).
late 14c., "to snore," probably related to snore (v.). Meaning "breathe through the nose with a harsh sound" first recorded 1520s. Sense of "express contempt" is from 1818. Meaning "to inhale cocaine" is first attested 1935. Related: Snorted; snorting. American English snorter "something fierce or furious" is from 1833.
early 13c., "trunk or projecting nose of an animal," from Middle Low German and Middle Dutch snute "snout," from Proto-Germanic *snut- (source also of German Schnauze, Norwegian snut, Danish snude "snout"), which Watkins traces to a hypothetical Germanic root *snu- forming words having to do with the nose, imitative of a sudden drawing of breath (compare Old English gesnot "nasal mucus;" German schnauben "pant, puff, snort" (Austrian dialect), schnaufen "breathe heavily, pant," Schnupfen "cold in the head;" Old Norse snaldr "snout" (of a serpent), snuthra "to sniff, snuffle"). Of other animals and (contemptuously) of humans from c. 1300.
1944, "airshaft for submarines," from German Schnorchel, from German navy slang Schnorchel "nose, snout," related to schnarchen "to snore" (see snore (n.)). So called from its resemblance to a nose and its noise when in use. The Englished spelling first recorded 1949. The meaning "curved tube used by a swimmer to breathe under water" is first recorded 1951.