ROTA IS A WORD.
Millions of people have a "rota" in their work place, whereas probably about fifty know someone called Rita. Please, for the love of God, add "rota" to your dictionary. It's an utter pain.
And don't tell me to "add shortcut". It doesn't work. It just changes "rota" to "tots" and the capitalised version to Rita, still.
iPhone 4S, iOS 5.1.1