Motherliness is a synonym of maternalism.
As nouns the difference between motherliness and maternalism
is that motherliness is the property of being motherly while maternalism is the treatment of people in a motherly manner, especially by caring for them as a mother would care for her children.
motherliness
English
Noun
(-)
The property of being motherly.
maternalism
English
Noun
(-)
the treatment of people in a motherly manner, especially by caring for them as a mother would care for her children.