its use as interwiki prefix for the corresponding Tatar wiki, try tt:a . See also mw:Manual:$wgNamespaceAliases . [ edit ] Prefixes in various languages For Wikimedia projects this project prefix is "Wikipedia:", "Wiktionary:", "Wikibooks:", "Wikisource:", "Wikiquote:" and "Meta:". In languages other than English, the Wikipedia project has its own prefixes: in