Bible Dictionaries
For (2)

Webster's Dictionary

A prefix to verbs, having usually the force of a negative or privative. It often implies also loss, detriment, or destruction, and sometimes it is intensive, meaning utterly, quite thoroughly, as in forbathe.

Bibliography Information
Webster, Noah. Entry for 'For (2)'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​f/for-2.html. 1828.