Merriam-Webster Collegiate Dictionary - copious

 adjective  Etymology: Middle English, from Latin copiosus, from copia abundance, from co- + ops wealth — more at opulent  Date: 14th century  1.  a. yielding something abundantly a ~ harvest ~ springs  b. plentiful in number ~ references to other writers  2.  a. full of thought, information, or matter  b. profuse or exuberant in words, expression, or style a ~ talker  3. present in large quantity ; taking place on a large scale ~ weeping ~ food and drink  Synonyms: see plentiful  • ~ly adverb  • ~ness noun