In Amharic, bihier, when directly translated into English, means ethnic group.
Another, more generic Ethiopian/Eritrean word meaning "God" (including the deities of any other religion) is አምላክ (`amlak) which is descended from the Proto-Semitic term for "king" or "ruler."
It can be heard in the roots reggae and dub reggae music of artists such as Peter Broggs and Peter Tosh (who recorded a song named "Igziabeher (Let Jah Be Praised)" on his album Legalize It), The Abyssinians, Third World and Midnite.
In the fourth century, King Ezana ruled a large part of modern-day Eritrea and Northern Ethiopia.
People in his realm worshipped several gods, called Beher, Astar, and Maher.