Word Study
cosmonaut
CIDE DICTIONARY
cosmonaut, n. [Russ. kosmonavt from kosmos universe.].
an astronaut; -- a term used by the Soviets and Russians. [PJC]
OXFORD DICTIONARY
cosmonaut, n. a Soviet astronaut.
Etymology
Russ. kosmonavt, as COSMOS(1), after astronaut
ROGET THESAURUS
cosmonaut
Mariner
N sailor, mariner, navigator, seaman, seafarer, seafaring man, dock walloper, tar, jack tar, salt, able seaman, A, B, man-of-war's man, bluejacket, galiongee, galionji, marine, jolly, midshipman, middy, skipper, shipman, boatman, ferryman, waterman, lighterman, bargeman, longshoreman, bargee, gondolier, oar, oarsman, rower, boatswain, cockswain, coxswain, steersman, pilot, crew, aerial navigator, aeronaut, balloonist, Icarus, aeroplanist, airman, aviator, birdman, man-bird, wizard of the air, aviatrix, flier, pilot, test pilot, glider pilot, bush pilot, navigator, flight attendant, steward, stewardess, crew, astronaut, cosmonaut, parachutist, paratrooper.For further exploring for "cosmonaut" in Webster Dictionary Online