Copious

Co"pi*ous (?), a. [L. copiosus, fr. copia abundance: cf. F. copieux. See Copy, Opulent.] Large in quantity or amount; plentiful; abundant; fruitful.

Kindly pours its copious treasures forth.
Thomson.

Hail, Son of God, Savior of men! thy name
Shall be the copious matter of my song.
Milton.

Syn. -- Ample; abundant; plentiful; plenteous; rich; full; exuberant; overflowing; full. See Ample.