Thad

Greek

heart, courageous

Thadeaus, Thaddeus, Thadius, Thaddius, Taddeus, Thady, Thade, Thaddy, Tad, Thaddeo, Thadeus, Tadeo

Theodore, Thomas, Thaddeus, Theo, Timothy, Thurston, Thatcher, Thornton, Thurman, Theobald, Thayer, Thor