Ellipsis of Southern Comfort.

(not in the US) From or pertaining to the southern part of any region.

(chiefly US) From or pertaining to the South, the south-eastern states of the United States, or to the inhabitants or culture of that region.

Synonym of southerner

Of, facing, situated in, or related to the south.

Of or pertaining to a southern region, especially Southern Europe or the southern United States.

Of a wind: blowing from the south; southerly.