"ανδοουνναβο" meaning in Gaulois

{
  "categories": [
    {
      "kind": "other",
      "name": "Cas datifs en gaulois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Formes de noms communs en gaulois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots attestés en gaulois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Gaulois",
      "orig": "gaulois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Étymologies en gaulois incluant une reconstruction",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Datif pluriel du théonyme andounna^([1])^([2]).",
    "Composé de ande- (inférieur) et **udnā (eau)^([1]).",
    "Le passage de *andeudnā à andounna serait passé par assimilation de la nasalité (de **udnā à unna) et transformation de la diphtongue eu en ou^([1])."
  ],
  "lang": "Gaulois",
  "lang_code": "gaulois",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "related": [
    {
      "raw_tags": [
        "nominatif singulier"
      ],
      "word": "andounna"
    },
    {
      "raw_tags": [
        "datif pluriel"
      ],
      "word": "andounnabo"
    }
  ],
  "senses": [
    {
      "form_of": [
        {
          "word": "Source"
        }
      ],
      "glosses": [
        "Source, eau d'en bas."
      ],
      "id": "fr-ανδοουνναβο-gaulois-noun-hyfAbWEF"
    }
  ],
  "tags": [
    "dative",
    "form-of",
    "plural"
  ],
  "word": "ανδοουνναβο"
}

{
  "categories": [
    "Cas datifs en gaulois",
    "Formes de noms communs en gaulois",
    "Mots attestés en gaulois",
    "gaulois",
    "Étymologies en gaulois incluant une reconstruction"
  ],
  "etymology_texts": [
    "Datif pluriel du théonyme andounna^([1])^([2]).",
    "Composé de ande- (inférieur) et **udnā (eau)^([1]).",
    "Le passage de *andeudnā à andounna serait passé par assimilation de la nasalité (de **udnā à unna) et transformation de la diphtongue eu en ou^([1])."
  ],
  "lang": "Gaulois",
  "lang_code": "gaulois",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "related": [
    {
      "raw_tags": [
        "nominatif singulier"
      ],
      "word": "andounna"
    },
    {
      "raw_tags": [
        "datif pluriel"
      ],
      "word": "andounnabo"
    }
  ],
  "senses": [
    {
      "form_of": [
        {
          "word": "Source"
        }
      ],
      "glosses": [
        "Source, eau d'en bas."
      ]
    }
  ],
  "tags": [
    "dative",
    "form-of",
    "plural"
  ],
  "word": "ανδοουνναβο"
}