Deeply vs Deepen - What's the difference?

As an adverb deeply

is at depth, in a deep way.

to make deep or deeper.

(en-adv)

At depth, in a deep way.

To a deep extent.

profoundly

* deep (adverb sense )

(en verb)

To make deep or deeper

They deepened the well by 200 feet.

To make darker or more intense; to darken

The event deepened the prevailing gloom.

To make more poignant or affecting; to increase in degree

News of her death deepened my sorrow.

To make lower in tone

The tuner deepened the tone of the organ.

To become deeper

The water deepens as you go toward the middle of the channel.

To become darker or more intense

The crisis deepened in the following weeks.

To become lower in tone

His voice deepened with age.

(defn)