"Triarthrus" meaning in Translingual

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        "t1": "three",
        "t2": "joint"
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      "expansion": "tri- (“three”) + Ancient Greek ᾰ̓́ρθρον (árthron, “joint”) + -us m",
      "name": "affix"
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  "etymology_text": "tri- (“three”) + Ancient Greek ᾰ̓́ρθρον (árthron, “joint”) + -us m.",
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        },
        {
          "kind": "lifeform",
          "langcode": "mul",
          "name": "Trilobites",
          "orig": "mul:Trilobites",
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            "Arthropods",
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        }
      ],
      "glosses": [
        "A taxonomic genus within the family Olenidae – certain extinct ptychopariid trilobites."
      ],
      "id": "en-Triarthrus-mul-name--43IuZk3",
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        ],
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          "Olenidae",
          "Olenidae#Translingual"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "Triarthrus"
}

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      },
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      "name": "affix"
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  "etymology_text": "tri- (“three”) + Ancient Greek ᾰ̓́ρθρον (árthron, “joint”) + -us m.",
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        "A taxonomic genus within the family Olenidae – certain extinct ptychopariid trilobites."
      ],
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          "Olenidae#Translingual"
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  "word": "Triarthrus"
}