obreption

noun3

1. •
   The inclusion of false statements in a petition for a rescript.

   • A dispensation from a minor impediment is not vitiated by obreption or subreption, even though the final cause alleged be false. — 1918
2. •
   (no longer used) Act of obtaining gifts of escheat by fraud or surprise.
3. •
   (no longer used) The act of creeping upon with secrecy or by surprise.

   • […]the irregularities of the first motions, violent assaults, and importunities of temptations, sudden incursions, and obreptions, sins of mere ignorance and inadvertency […] — 1678