Translation of "abba" into Russian

(Christianity) Father; religious superior; in the Syriac, Coptic, and Ethiopic churches, a title given to the bishops, and by the bishops to the patriarch. [..]

Father, an honorific title given to God in the New Testament, especially used in prayers.Philip Babcock Gove (editor), Webster's Third International Dictionary of the English Language, Unabridged (G. & C. Merriam Co., 1976 [1909], ISBN 0-87779-101-5) [First attested around 1350 to 1470.]Lesley Brown (editor), The Shorter Oxford English Dictionary, 5th edition (Oxford University Press, 2003 [1933], ISBN 978-0-19-860575-7), page 3