Adeste fideles laeti triumphantes. [Christmas.] As to the authorship and actual date of this hymn nothing positive is known. It has been ascribed to St. Bonaventura, but is found in no edition of his Works. Most probably it is a hymn of the 17th or 18th century, and of French or German authorship. The text appears in three forms. The first is in 8 stanzas, the second, that in use in France, and the third the English use, both in Latin and English. The full text [is] from Thesaurus Animae Christianae, Mechlin, N.D. (where it is given as a second sequence for Christmas and said to be "Ex Graduali Cisterciensi"….
Translations not in common use:—
7. With hearts truly grateful. Psalms & Hymns. Washington, 1830.
-- Excerpts from John Julian, Dictionary of Hymnology (1907)