"massimisttiset" meaning in Same du Nord

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en same du Nord",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Same du Nord",
      "orig": "same du Nord",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Same du Nord",
  "lang_code": "se",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "form_of": [
        {
          "word": "massimis"
        }
      ],
      "glosses": [
        "Forme possessive à la troisième personne du pluriel de massimis."
      ],
      "id": "fr-massimisttiset-se-noun-S1eJLx3x"
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈmɑsːimistːiset/"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "massimisttiset"
}

{
  "categories": [
    "Formes de noms communs en same du Nord",
    "same du Nord"
  ],
  "lang": "Same du Nord",
  "lang_code": "se",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "form_of": [
        {
          "word": "massimis"
        }
      ],
      "glosses": [
        "Forme possessive à la troisième personne du pluriel de massimis."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈmɑsːimistːiset/"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "massimisttiset"
}