Thanks so much to both of you who illustrated me about the origin of the surname ABREU. Most of the Abreu families to whom I asked did not know either this interesting information.
I wonder how two unrelated families (Garcia and Delgado) had the surnames "de Abreu" ("from Abreu") added. Were their ancestors from Portugal? Only the research of these ancestors could give an answer, and this information has to be followed in the Canary Islands. Thanks again. Enrique