Public-domain · open source

Ex proprio vigore

Defined in 3 dictionaries — Ballentine's (1916), Black's (1910), Burrill (1850)

Ballentine's Law Dictionary

James A. Ballentine · 1916

Of its own force.

Black's Law Dictionary

Henry Campbell Black, M.A. · 1910

By their or Its own force. 2 Kent, Comm. 457.

A New Law Dictionary and Glossary

Alexander M. Burrill · 1850

Lat. By their, or its own force. 2 Kent's Com. 457.