maternity vs maternal

maternity is a noun but maternal is not a noun.

Word	Noun	Adjective	Verb	Adverb
maternity	Yes	No	No	No
maternal	No	Yes	No	No

maternity (noun)	maternal (noun)
the quality of having or showing the tenderness and warmth and affection of or befitting a mother
the kinship relation between an offspring and the mother
the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus

maternity (adjective)	maternal (adjective)
	characteristic of a mother
	relating to or characteristic of or befitting a parent
	relating to or derived from one's mother
	related on the mother's side