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Webster 1913 Edition

Adj.

Supplicatory; making a petition.

Pardon Rome, and any

petitionary

countrymen.

Shakespeare

Containing a petition; of the nature of a petition;

as, a

petitionary

epistle

Swift.

Adj.

Supplicatory; coming with a petition.

Pardon thy petitionary countrymen.

Containing a petition or request; as a petitionary prayer; a petitionary epistle.

petitionary ‎(comparative more petitionary, superlative most petitionary)

supplicatory; making a petition
Pardon Rome, and any petitionary countrymen. — Shakespeare.
Containing a petition; of the nature of a petition.
A petitionary epistle — Swift.

making a petition