disk Look up disk at Dictionary.com
Amer.Eng. preferred spelling, 1664, from L. discus "quoit, discus, disk," from Gk. diskos, from dikein "throw." Sense of phonograph disk is 1888; disk jockey first recorded 1941; dee-jay is from 1955; DJ is 1961; video version veejay is 1982. Computing sense is from 1947; diskette "floppy disk" is 1973, with dim. suffix; disk-drive is 1952.