An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

Pertaining to or affecting a particular person or a small group of persons; individual; → personal (Dictionary.com).

L. privatus "set apart, peculiar, personal," used in contrast to publicus, p.p. of privare "to separate, deprive, to rob" from privus "one's own, individual."

Vâvan, literally "separated, not bound," from vâ- separation prefix, → de-, + van, contraction of vand, band, from vastan, bastan "to bind, fasten, close," → band.