"runa" meaning in Gaulois

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots attestés en gaulois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en gaulois issus d’un mot en gotique",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en gaulois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Gaulois",
      "orig": "gaulois",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Du gotique 𐍂𐌿𐌽𐌰, runa (« mystère »)."
  ],
  "forms": [
    {
      "form": "runo-"
    }
  ],
  "lang": "Gaulois",
  "lang_code": "gaulois",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en gaulois",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Secret. Mot attesté dans les noms propres Runa, Runelos, Cobrunos, etc.^([1])^([2])."
      ],
      "id": "fr-runa-gaulois-noun-TuwT1J7D"
    }
  ],
  "word": "runa"
}

{
  "categories": [
    "Mots attestés en gaulois",
    "Mots en gaulois issus d’un mot en gotique",
    "Noms communs en gaulois",
    "gaulois"
  ],
  "etymology_texts": [
    "Du gotique 𐍂𐌿𐌽𐌰, runa (« mystère »)."
  ],
  "forms": [
    {
      "form": "runo-"
    }
  ],
  "lang": "Gaulois",
  "lang_code": "gaulois",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Wiktionnaire:Exemples manquants en gaulois"
      ],
      "glosses": [
        "Secret. Mot attesté dans les noms propres Runa, Runelos, Cobrunos, etc.^([1])^([2])."
      ]
    }
  ],
  "word": "runa"
}