His fear to such an extent that even his name, as a rule, do not say. Most characters refer to it as "You-Know-Who" or "He Who Must Not-Call" and his followers, the Death Eaters, called it "the Dark Lord."Tom Marvolo Riddle (. Born Tom Marvolo Riddle) - the main negative character in a series of novels about Harry Potter; dark wizard of immense magical power, and almost reached immortality by means of black magic, to be exact - with the help of a Horcrux. In the wizarding world better known as Lord Lord Voldemort (Eng. Lord Voldemort).
Harry Potter however, was not afraid to say his name initially, because he grew up among Muggles and first heard about Lord Voldemort only eleven years old. He did not know about his misdeeds and did not have the bias inherent in the majority. Later, among other magicians, respecting their feelings, he calls the Dark Lord, "You-Know-Who," but in the end, following the example of Dumbledore, still takes it a rule to always call Lord Voldemort Lord Voldemort .
Over time, with some trepidation, his example is followed by Hermione Granger and Ginny Weasley. Some members of the Order of the Phoenix, for example, Sirius Black, Remus Lupin and Albus Dumbledore, always without any hesitation called the full name of Lord Voldemort.