Definition of "petitionary"

petitionary

adjective
not comparable
1. supplicatory; making a petition
  Quotations
  I have been blown out of your gates with sighs; and conjure thee to pardon Rome and thy petitionary countrymen.
  c. 1608–1609 (date written), William Shakespeare, “The Tragedy of Coriolanus”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act V, scene i]
2. Containing a petition; of the nature of a petition.
  Quotations
  petitionary epistles
  August 17, 1736, Alexander Pope, letter to Jonathan Swift