from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. Law To determine judicially the paternity of (a child born out of wedlock, for example).

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To adopt as son or daughter.
  • v. To establish filiation between.

from the GNU version of the Collaborative International Dictionary of English

  • transitive v. To adopt as son or daughter; to establish filiation between.

from The Century Dictionary and Cyclopedia

  • To adopt as a son or daughter; take into filial relation.
  • In law, to determine judicially the paternity of, as a bastard child; hence, to refer to the author or maker.
  • To establish any analogous close relation between; affiliate.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. fix the paternity of


Medieval Latin fīliāre, fīliāt-, to acknowledge as a son, from Latin fīlius, son; see dhē(i)- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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