Passage: The word mihrab originally had a non-religious meaning and simply denoted a special room in a house; a throne room in a palace, for example. The Fath al-Bari (p. 458), on the authority of others, suggests the mihrab is "the most honorable location of kings" and "the master of locations, the front and the most honorable." The Mosques in Islam (p. 13), in addition to Arabic sources, cites Theodor Nöldeke and others as having considered a mihrab to have originally signified a throne room.

Question: What did the word mihrab orginally mean?
a non-religious meaning and simply denoted a special room in a house; a throne room in a palace