From the experts:
Tyrion is one of the many new names entering the lexicon thanks to George R. R. Martin, author of the Game of Thrones book. Tyrion's name shares its first two letters with those of his father Tywin and his grandfather Tytos. The Tyrion Lannister character, a dwarf, is played by award-winning actor Peter Dinklage. Martin has said he saw the Tyrion character as being both the ugliest and the most intelligent person in the world, a mixed legacy for any child.