The feminine name Adina 3 is from the same root, but is spelled differently in Hebrew.
This name was fairly common in France, England and the United States in the early 20th century. It became quite popular in France and England at the end of the 20th century, just when it was at a low point in the United States. It quickly climbed the American charts and entered the top ten in 2014.
After the Protestant Reformation it was occasionally used as a given name in the English-speaking world, and it became somewhat common in America due to the fame of the revolutionary Ethan Allen (1738-1789). It only became popular towards the end of the 20th century. It is the name of the main character in Edith Wharton's novel Ethan Frome (1911), about a man in love with his wife's cousin.
This is the Old Irish form of the name, as well as the usual Anglicized form of Modern Irish Fearghas or Fearghus.
The name became popular in the English-speaking world outside of Ireland in the middle of the 20th century, and elsewhere in Europe in the latter half of the 20th century. Famous bearers include the American actors Kevin Costner (1955-) and Kevin Bacon (1958-). It was also borne by the character Kevin McCallister in the 1990 comedy movie Home Alone.