
English word gladiator comes from Proto-Indo-European *kelh₂-, and later Proto-Celtic *kladiwos (Sword.)
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*kelh₂- (Proto-Indo-European)
*kl̥h₂d- (Proto-Indo-European)
*kladiwos (Proto-Celtic)
Sword.
*kladyos (Gaulish)
gladius (Latin)
(figuratively) murder, death. (slang) penis. A gladiatorial contest. Sword. Swordfish.
gladiator (Latin)
Gladiator, swordsman.
gladiator (English)
(by extension) A disputant in a public controversy or debate.. (in ancient Rome) A person (professional or slave) who entertained the public by engaging in mortal combat with another, or with a wild animal.. A professional boxer.