Noah Webster's New International Dictionary of the English Language

1. (a.) Broken down in principle, virtue, or decency; openly and shamelessly immoral or vicious; dissolute; as, profligate man or wretch.

2. (a.) Overthrown; beaten; conquered.

3. (n.) An abandoned person; one openly and shamelessly vicious; a dissolute person.

4. (v. t.) To drive away; to overcome.