1530s, "aged, venerable," from Middle French antique "old" (14c.), from Latin antiquus (later anticus) "ancient, former, of olden times; old, long in existence, aged; venerable; old-fashioned," from PIE *anti in sense of "before" (see ante) + *okw- "appearance" (see eye (n.)). Originally pronounced in English like its parallel antic, but French pronunciation and spelling were adopted from c.1700.
"an old and collectible thing," 1771, from antique (adj.).
"to give an antique appearance to," 1896, from antique (adj.). Related: Antiqued; antiquing.