1944, "airshaft for submarines," from Ger. Schnorchel,
from Ger. navy slang Schnorchel
"nose, snout," related to schnarchen
"to snore" (see snore
). 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 in 1953.