Bible Dictionaries
Filioque

The American Church Dictionary and Cyclopedia

The Latin for the words "and the Son" which occur in
our form of the Nicene Creed. They are not found in the original
Creed as used in the Greek Church, but were added by the Third
Council of Toledo, A.D. 589. This addition to the Creed by the
Western Church was the subject of a long controversy between the
East and the West, which with other complications finally led to
their entire separation in A.D. 1054. (See PROCESSION OF THE HOLY
GHOST.)

Bibliography Information
Miller, William James. Entry for 'Filioque'. The American Church Dictionary and Cyclopedia. https://www.studylight.org/​dictionaries/​eng/​acd/​f/filioque.html. 1901.