Facto

from The Collaborative International Dictionary of English v.0.48

Facto \Fac"to\, adv. [L., ablative of factum deed, fact.] (Law)
   In fact; by the act or fact.
   [1913 Webster]

   {De facto}. (Law) See {De facto}.
      [1913 Webster]

from Bouvier's Law Dictionary, Revised 6th Ed (1856)

FACTO. In fact, in contradistinction to the lawfulness of the thing; it is 
applied to anything actually done. Vide Ex Post Facto.

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