Nonstandard variant of "to boot" used outside the American South. 1. Slang. An adverb
indicating the presence of something
additional to what precedes it that is a bonus and provides a kick Middle English bote < Old French bote, kick. 2. Regional, American South. Something given in addition. 3. Archaic outside of the American South. Advantage; avail, ---idiom. "to boot," "in addition to. from Middle English boten < Old English bot, help, advantage, addition,
recompense.