1970, proprietary name of a rocket-propelled short-range guided missile, trademarked 1970 by Société Nationale Industrielle Aerospatiale, from Fr. exocet "flying fish," from L. exocoetus, from Gk. exokoitos "sleeping fish, fish that sleeps upon the beach," from exo "outside" + koitos "bed."
[ek-soh-set] 
soʊˌsɛt