"mórg" meaning in Polonais

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms communs en polonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Polonais",
      "orig": "polonais",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Polonais",
  "lang_code": "pl",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "masculin inanimé"
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "morga"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Termes désuets en polonais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Unités de mesure de superficie en polonais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en polonais",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Variante de morga."
      ],
      "id": "fr-mórg-pl-noun-FXR-hSdZ",
      "tags": [
        "alt-of",
        "obsolete"
      ],
      "topics": [
        "metrology"
      ]
    }
  ],
  "word": "mórg"
}

{
  "categories": [
    "Noms communs en polonais",
    "polonais"
  ],
  "lang": "Polonais",
  "lang_code": "pl",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "masculin inanimé"
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "morga"
        }
      ],
      "categories": [
        "Termes désuets en polonais",
        "Unités de mesure de superficie en polonais",
        "Wiktionnaire:Exemples manquants en polonais"
      ],
      "glosses": [
        "Variante de morga."
      ],
      "tags": [
        "alt-of",
        "obsolete"
      ],
      "topics": [
        "metrology"
      ]
    }
  ],
  "word": "mórg"
}