Southern vs south

Southern

adj
  • from or pertaining to the South, the south-eastern states of the United States, or to the inhabitants or culture of that region. 

  • from or pertaining to the southern part of any region 

name
  • A surname. 

south

adj
  • Of or pertaining to the south; southern. 

  • Designating, or situated in, the liturgical south. 

  • Pertaining to the part of a corridor used by southbound traffic. 

  • from the south. 

  • Toward the south; southward. 

adv
  • Downward. 

  • Of wind, from the south. 

  • In an adverse direction or trend (go south). 

  • Toward the south; southward. 

verb
  • To turn or move toward the south; to veer toward the south. 

  • To come to the meridian; to cross the north and south line. 

noun
  • In a church: the direction to the right-hand side of a person facing the altar. 

  • The negative or south pole of a magnet 

  • One of the four principal compass points, specifically 180° (being directed towards the South Pole); conventionally downwards on a map. 

  • The southern region or area; the inhabitants thereof. 

  • down or the negative direction 

How often have the words Southern and south occurred in a corpus of books? (source: Google Ngram Viewer )