noun (n)

• the quality of having or showing the tenderness and warmth and affection of or befitting a mother(noun.attribute)

  Example:
  The girl's motherliness made her invaluable in caring for the children.
  

  Synonym:
  maternal quality, maternalism, maternity
  

  source: wordnet30
• The state or quality of being motherly.(noun)

  source: webster1913