parental

Etymology

From Middle French parental, from Latin parentalis, from parens (“parent”).

adj

1. of or relating to a parent
2. befitting a parent; affectionate; tender
3. (genetics) of the generation of organisms that produce a hybrid
   This, following Bateson, we may call the parental generation or P generation. Subsequent generations are called filial generations (abbreviated F) and their numerical order is indicated by a subscript, … 1916, William E. Castle, Gregor Mendel, Genetics & Eugenics, page 101

noun

1. A person fulfilling a parental role.
   Nowadays there are all kinds of potential parentals besides parents, grandparents, aunts and uncles, step-parents, in-laws, older siblings and cousins, and those in civil unions.