What's the difference between apish and apishly?

Apish

Definition:

• (a.) Having the qualities of an ape; prone to imitate in a servile manner. Hence: Apelike; fantastically silly; foppish; affected; trifling.

Example Sentences:

Apishly

Definition:

• (adv.) In an apish manner; with servile imitation; foppishly.

Example Sentences: