filiate

verb (used with object), fil·i·at·ed, fil·i·at·ing.

1. Law. to determine judicially the paternity of, as a child born out of wedlock.Compare affiliate(def 5).

verb (tr)

1. law to fix judicially the paternity of (a child, esp one born out of wedlock)
2. law a less common word for affiliate
3. archaic to affiliate or associate