motherly vs uterine

motherly

adj
  • Befitting a mother; warm, caring, nurturing, protective, loving. 

adv
  • In a way pertaining to, befitting, or of a mother. 

uterine

adj
  • Born of the same mother but of a different father. 

  • Of or pertaining to the uterus. 

noun
  • A uterine sibling. 

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