Abuna

Abuna (Ge'ez: አቡነ ’abuna, 'our father'; Amh., Tgn.’abune) is the title of the metropolitan bishop or head of the Ethiopian Orthodox Tewahedo Church. Abuna (Arabic: أبونا ’abūnā, literally 'our father') is also a title used among Arabic-speaking Christians to refer to a priest. The title is used either by itself, or with the priest's given name, for example 'Abuna Tuma' for 'Father Thomas'. This title is not used in self-reference, rather the priest would refer to himself as al-Ab (الأب al-’ab, literally 'the father').
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Abunã is a town in the Rondônia state of Brazil. It is situated in the Amazon Basin on the right bank of the Madeira River 10 km upstream from its confluence with the Abuna River. The Abuna River and the Maderia River upstream from their confluence mark the boundary between Brazil and Bolivia, and so Abunã is across the river from the Bolivia.
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(n.)
The Patriarch, or head of the Abyssinian Church.