Parva proditio
Defined in 3 dictionaries — Ballentine's (1916), Kinney (1893), Stimson (1881)
Ballentine's Law Dictionary
James A. Ballentine · 1916
Petty treason.
A Law Dictionary and Glossary
George C. Kinney · 1893
I.
In old Englinh law. Petty treason. Parva serjantia: petty serjeanty.
Glossary of Technical Terms, Phrases, and Maxims of the Common Law
Frederic Jesup Stimson · 1881
/. Petty treason. serjeanly. Parvum cape: petit