Origin: Greek suffix -gon
Klingon has 2 different meanings across 1 category:
Member of a fictional alien warrior race depicted as having distinctive forehead ridges and a culture based on strict observance of honour, loyalty, and combat.
An artificial language created by Marc Okrand, for the film Star Trek II: The Wrath of Khan
The word "klingon" comes from the German Klingen, meaning "cliffs," which entered English through Russian. This origin is supported by historical records showing many people with this surname in US censuses during the 1900s were from Russia, as well as related family names like Klingensmith.