O Directory References Discover 11 Egyptian Gods and Goddesses Why Is Ireland Two Countries? Was Santa Claus a Real Person? Pro and Con: School Uniforms 11 Banned Books Through Time Why Is Thanksgiving in the U.S. Celebrated on a Thursday? 12 Novels Considered the “Greatest Book Ever Written” Contents O surname prefix Ask the Chatbot a Question Also known as: Ua Learn about this topic in these articles:history of surname prefix Mac In Mac…Tierney (Ua, later shortened to O, means grandson or, more loosely, descendant).Read More
