Copious (adjective)

1. Abundant in quantity.
2. Plentiful and generous in providing what is needed or desired.

Origin:

From the latin word "copiosus" meaning "abundant".

Examples:

1. After the rain, the flowers received copious amount of water.
2. The author provided copious notes and references in the back of the book.
3. She had a copious amount of energy and could work for hours without getting tired.
4. The river had a copious flow of water, providing power for the nearby mills.
5. The cook prepared a copious meal, with enough food to feed the whole family.