How qualities of UIs become used in UX.
“One of the most common terms of praise for an interface is to say that it is “intuitive” (the word should have been “intuitable” but we will bow to convention). Yet the Human Computer Interaction (HCI) literature rarely mentions the word, and for good reason. This note attempts to clarify the meaning of “intuitive” for non-HCI specialists.”
(Jef Raskin 1994)