"rarissime" meaning in Francés medio

{
  "categories": [
    {
      "kind": "other",
      "name": "FRM:Adjetivos",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Francés medio",
      "parents": [],
      "source": "w"
    }
  ],
  "extra_sounds": {
    "pronunciación": "falta agregar"
  },
  "lang": "Francés medio",
  "lang_code": "frm",
  "pos": "adj",
  "pos_title": "adjetivo",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "FRM:Superlativos",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Superlativo de rare: rarísimo."
      ],
      "id": "es-rarissime-frm-adj-1",
      "senseid": "1"
    }
  ],
  "word": "rarissime"
}

{
  "categories": [
    "FRM:Adjetivos",
    "Francés medio"
  ],
  "extra_sounds": {
    "pronunciación": "falta agregar"
  },
  "lang": "Francés medio",
  "lang_code": "frm",
  "pos": "adj",
  "pos_title": "adjetivo",
  "senses": [
    {
      "categories": [
        "FRM:Superlativos"
      ],
      "glosses": [
        "Superlativo de rare: rarísimo."
      ],
      "senseid": "1"
    }
  ],
  "word": "rarissime"
}