In Latin the correct pronunciation is TAH-kee-tah.
In Spanish (Tácita), it is TAH-thee-tah in European Spanish and TAH-see-tah in American Spanish.
In Catalan (Tàcita), it is TAH-see-tuh.
In Italian it is TAH-chee-tah.
Lumia
http://onomastica.mailcatala.com