Etruscans themselves used the term Rasenna , which was syncopated to Rasna or Raśna.  http://www.mlahanas.de/Greeks/Mythology/Images/TheseusG67.jpg   (Theseus is wearing a knot on his forhead). Under Romulus and Numa the people were said to have been  divided into thirty curiae and three tribes . Very few words of Etruscan entered the Latin