What does Qt stand for?

"The letter ‘Q’ was chosen as the class prefix because the letter looked beautiful in Haavard’s Emacs font. The ‘t’ was added to stand for “toolkit”, inspired by Xt, the X Toolkit. The company was incorporated on March 4, 1994, originally as Quasar Technologies, then as Troll Tech, and today as Trolltech."

So it should be Quasar Toolkit.

References: 1.https://answers.yahoo.com/question/index?qid=20130907190045AAZZ9uM 2.http://formfull.in/qt

Quote from the first edition of C++ gui programming with Qt 4:

The letter ‘Q’ was chosen as the class prefix because the letter looked beautiful in Haavard’s Emacs font. The ‘t’ was added to stand for “toolkit”, inspired by Xt, the X Toolkit.

*Haavard Nord and Eirik Chambe-Eng began the development of Qt

The same piece of history is on wikipedia