Medigoron

Biggoron's younger brother, of a similar size. 'Medigoron claims to be as good as his brother as smithing, and asks Link to pay 200 rupees, in exchange for the Giant's Knife, a blade which turns out to be useless. Medigoron appears in Ocarina of Time.

He also appears in Majora's Mask, this time making the devastating Powder Keg.

Medigoron's name seems to be a portmanteau of medi- (from the latin medius, meaning middle), and -goron (believed to originate from the phrase "goron, goron", a Japanese onomatopoeia for the sound of a rolling rock.)