Catholic encyclopedia

IGR.

Igr.: translation

Igr.
Catholic_EncyclopediaEcclesiastical Abbreviations
Abbreviation used in Apostolic Rescripts
Igitur ("Therefore")
Abbreviation in general use, chiefly Ecclesiastical
Igitur ("Therefore")

The Catholic Encyclopedia, Volume VIII. — New York: Robert Appleton Company.Nihil Obstat.1910.