Filiation (?), n. [LL. filiatio, fr. L. filius son: cf. F. filiation. See Filial.] 1. The relationship of a son or child to a parent, esp. to a father.[1913 Webster]
The relation of paternity and filiation.
2. (Law) The assignment of a bastard child to some one as its father; affiliation. Smart.[1913 Webster]
3. Descent from, or as if from, a parent; relationship like that of a son; as, to determine the filiation of a language.[Webster 1913 Suppl.]
4. One that is derived from a parent or source; an offshoot; as, the filiations are from a common stock.[Webster 1913 Suppl.]