Called Eponyms, many words tell interesting tales about their origins.Wittingly or unwittingly, few people and places have left their names for posterity through words that were coined after them. These words are derived from the names of real, fictional, mythical or spurious persons, places or characters, although many of these Eponyms come from the persons surnames.
Here is The List of Eponyms beginning with Q.
A traitor who collaborates with an occupying enemy force
During the Second World War, Major Vidkun Quisling ruled Norway on behalf of the German occupying forces. His name is notorious since then.
Impractically idealistic or fanciful
The word comes from the eccentric hero Don Quixote, hero of Miguel Cervantes novel by the same name