1844, American English, from Spanish incomunicado, past participle of incomunicar "deprive of communication," from in- "not" (see in- (1)) + comunicar "communicate," from Latin communicare "to share, impart," literally "to make common," related to communis "common, public, general" (see common (adj.)).
c. 1300, "have dealings with," from Old French comuner "to make common, share" (10c., Modern French communier), from comun "common, general, free, open, public" (see common (adj.)). Meaning "to talk intimately" is late 14c. Related: Communed; communing.
"one who or that which communicates," 1660s, from Late Latin communicator, agent noun from communicare "to share, divide out; communicate, impart, inform; join, unite, participate in," literally "to make common," related to communis "common, public, general" (see common (adj.)). Related: Communicatory.
common abbreviation of abbreviation.
"member of the lowest class or the common people," 1530s, from Latin plebius "person not of noble rank," from adjective meaning "of the common people" (see plebeian (adj.)).
late 14c., "that communicates," from French communicatif, from Latin communicat-, past participle stem of communicare "to share, divide out; communicate, impart, inform; join, unite, participate in," literally "to make common," related to communis "common, public, general" (see common (adj.)). Meaning "talkative, not reserved, ready to converse" is recorded from 1650s. Related: Communicativeness.