Filial

Filial
1. Of or pertaining to a son or daughter; becoming to a child in relation to his parents; as, filial obedience.
2. Bearing the relation of a child. And thus the filial Godhead answering spoke. (Milton)
Origin: L. Filialis, fr. Filius son, filia daughter; akin to e. Female, feminine. Cf. Fitz.