"agathology" meaning in English

{
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        "2": "ἀγαθός",
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      "expansion": "Ancient Greek ἀγαθός (agathós, “good”) + -ology",
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  "etymology_text": "From Ancient Greek ἀγαθός (agathós, “good”) + -ology.",
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  "lang_code": "en",
  "pos": "noun",
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          "word": "agathological"
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        "The science or theory of the good."
      ],
      "id": "en-agathology-en-noun-7YQYDwvw",
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          "good",
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      "related": [
        {
          "word": "ethics"
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          "word": "morality"
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      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "the science or theory of the good",
          "tags": [
            "feminine"
          ],
          "word": "agathologie"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "the science or theory of the good",
          "tags": [
            "neuter"
          ],
          "word": "dobrologia"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "the science or theory of the good",
          "tags": [
            "feminine"
          ],
          "word": "agatologia"
        }
      ]
    }
  ],
  "word": "agathology"
}

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      "word": "agathological"
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  "etymology_text": "From Ancient Greek ἀγαθός (agathós, “good”) + -ology.",
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  "lang_code": "en",
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      "word": "morality"
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      "word": "ethology"
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  "translations": [
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      "code": "fr",
      "lang": "French",
      "sense": "the science or theory of the good",
      "tags": [
        "feminine"
      ],
      "word": "agathologie"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "the science or theory of the good",
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      "sense": "the science or theory of the good",
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      "word": "agatologia"
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  "word": "agathology"
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