"Well –– I don' like sayin' the name if I can help it. No one does."
"Gulpin' gargoyles, Harry, people are still scared. Blimey, this is difficult. See, there was this wizard who went... bad. As bad as you could go. Worse. Worse than worse. His name was..."
Hagrid gulped, but no words came out.
"Could you write it down?" Harry suggested.
"Nah –– can't spell it. All right –– Voldemort. " Hagrid shuddered. "Don' make me say it again. Anyway, this –– this wizard, about twenty years ago now, started lookin' fer followers. Got 'em, too –– some were afraid, some just wanted a bit o' his power, 'cause he was gettin' himself power, all right. Dark days, Harry. (Harry Potter and the Sorcerer's Stone)