snorkel (n.) Look up snorkel at Dictionary.com
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 anglicized spelling first recorded 1949. The meaning "curved tube used by a swimmer to breathe under water" is first recorded 1951.