Catechism of the Catholic Church §1078 — excerpt
Blessing is a divine and life-giving action, the source of which is the Father; his blessing is both word and gift. When applied to man, the word "blessing" means adoration and surrender to his Creator in thanksgiving.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.
Also cites: eu-logia, bene-dictio