"ἀδάρϰιον" meaning in Gaulois

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots attestés en gaulois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en gaulois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Gaulois",
      "orig": "gaulois",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Lien possible avec le vieil irlandais adarc (« corne »), dont la poudre ressemble à l’écume en question, et le basque adar."
  ],
  "lang": "Gaulois",
  "lang_code": "gaulois",
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "word": "adarces"
    },
    {
      "word": "adarca"
    },
    {
      "word": "ἀδάρϰης"
    },
    {
      "word": "ἀδάρϰη"
    },
    {
      "word": "ἀδάρϰος"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en gaulois de la médecine",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Galate",
          "orig": "galate",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Écume de roseau, efflorescence saline se produisant sous la panicule des roseaux, dans les lieux humides."
      ],
      "id": "fr-ἀδάρϰιον-gaulois-noun-6XX2SjIa",
      "raw_tags": [
        "Galate"
      ],
      "topics": [
        "medicine"
      ]
    }
  ],
  "word": "ἀδάρϰιον"
}

{
  "categories": [
    "Mots attestés en gaulois",
    "Noms communs en gaulois",
    "gaulois"
  ],
  "etymology_texts": [
    "Lien possible avec le vieil irlandais adarc (« corne »), dont la poudre ressemble à l’écume en question, et le basque adar."
  ],
  "lang": "Gaulois",
  "lang_code": "gaulois",
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "word": "adarces"
    },
    {
      "word": "adarca"
    },
    {
      "word": "ἀδάρϰης"
    },
    {
      "word": "ἀδάρϰη"
    },
    {
      "word": "ἀδάρϰος"
    }
  ],
  "senses": [
    {
      "categories": [
        "Lexique en gaulois de la médecine",
        "galate"
      ],
      "glosses": [
        "Écume de roseau, efflorescence saline se produisant sous la panicule des roseaux, dans les lieux humides."
      ],
      "raw_tags": [
        "Galate"
      ],
      "topics": [
        "medicine"
      ]
    }
  ],
  "word": "ἀδάρϰιον"
}