Webster's Revised Unabridged Dictionary · 1913

Copious

Copious , adjective

[Latin copiosus, from copia abundance: compare French 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