* AdaptationDisplacement: Merlin is partly based on the now almost unknown Welsh figure Myrddin, a Bard who went insane and who has his own set of legends.
* MemeticBadass: Given that he appears in so many legends, Merlin definitely personifies this trope.
* {{Woolseyism}}: Merlin is only named "Merlin" because of this. Geoffrey converted the Welsh name Myrddin to "Merlinus" in Latin because "Merdinus" would have been similar to "merde" and "merda", the Norman/French and Latin words for shit. What Geoffrey missed was that the ''-dd'' was pronounced as ''-th'' in Welsh (thus something like "Merthin"), not a hard ''d''.
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