Adherence describes this willingness to stick or be faithful, like adherence to child labor laws that means young workers cannot work past a certain time on school nights.
pertaining to or involving both a mother and her daughter, esp. the relationship itself or an activity in which both participate; also, pertaining to a mother-and-daughter partnership. Examples.
A mother-in-law is the mother of a person's spouse. Two women who are mothers-in-law to each other's children may be called co-mothers-in-law, or, if there are grandchildren, co-grandmothers. In comedies, the mother-in-law is sometimes shown as the bane of the husband, who is married to the mother-in-law's daughter.