From BiblePortal Wikipedia

King James Dictionary [1]

L'Argely, adv.

1. Widely extensively. 2. Copiously diffusely amply. The subject was largely discussed. 3. Liberally bountifully.

- How he lives and eats how largely gives.

4. Abundantly.

They their fill of love and love's disport took largely.

Webster's Dictionary [2]

(adv.) In a large manner.