"dématiner" meaning in Gallo

{
  "categories": [
    {
      "kind": "other",
      "name": "Lemmes en gallo",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Verbes du premier groupe en gallo",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Verbes en gallo",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Verbes pronominaux en gallo",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Wiktionnaire:Conjugaisons manquantes en gallo",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Gallo",
      "orig": "gallo",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Gallo en graphie inconnue",
      "orig": "gallo en graphie inconnue",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "se dématiner",
      "tags": [
        "pronominal"
      ]
    }
  ],
  "lang": "Gallo",
  "lang_code": "gallo",
  "pos": "verb",
  "pos_title": "Verbe",
  "raw_tags": [
    "1ᵉʳ groupe",
    "graphie inconnue"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Gallo attesté à Melesse",
          "orig": "gallo attesté à Melesse",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Se lever tôt."
      ],
      "id": "fr-dématiner-gallo-verb-mNKU4JXM",
      "raw_tags": [
        "Melesse"
      ]
    }
  ],
  "tags": [
    "pronominal"
  ],
  "word": "dématiner"
}

{
  "categories": [
    "Lemmes en gallo",
    "Verbes du premier groupe en gallo",
    "Verbes en gallo",
    "Verbes pronominaux en gallo",
    "Wiktionnaire:Conjugaisons manquantes en gallo",
    "gallo",
    "gallo en graphie inconnue"
  ],
  "forms": [
    {
      "form": "se dématiner",
      "tags": [
        "pronominal"
      ]
    }
  ],
  "lang": "Gallo",
  "lang_code": "gallo",
  "pos": "verb",
  "pos_title": "Verbe",
  "raw_tags": [
    "1ᵉʳ groupe",
    "graphie inconnue"
  ],
  "senses": [
    {
      "categories": [
        "gallo attesté à Melesse"
      ],
      "glosses": [
        "Se lever tôt."
      ],
      "raw_tags": [
        "Melesse"
      ]
    }
  ],
  "tags": [
    "pronominal"
  ],
  "word": "dématiner"
}