"grifste" meaning in Néerlandais

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes d’adjectifs en néerlandais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Néerlandais",
      "orig": "néerlandais",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Néerlandais",
  "lang_code": "nl",
  "pos": "adj",
  "pos_title": "Forme d’adjectif",
  "raw_tags": [
    "Moins courant"
  ],
  "senses": [
    {
      "form_of": [
        {
          "word": "grif"
        }
      ],
      "glosses": [
        "Le superlatif, forme déclinée, de grif."
      ],
      "id": "fr-grifste-nl-adj-62eN2miU"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "grifste"
}

{
  "categories": [
    "Formes d’adjectifs en néerlandais",
    "néerlandais"
  ],
  "lang": "Néerlandais",
  "lang_code": "nl",
  "pos": "adj",
  "pos_title": "Forme d’adjectif",
  "raw_tags": [
    "Moins courant"
  ],
  "senses": [
    {
      "form_of": [
        {
          "word": "grif"
        }
      ],
      "glosses": [
        "Le superlatif, forme déclinée, de grif."
      ]
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "grifste"
}