"longa" 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 indo-européen commun",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs 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": [
    "Mot lu dans l’inscription de Todi (E-5), en gallo-étrusque sous la forme 𐌋𐌏𐌊𐌀𐌍.",
    "De l’indo-européen commun *legh- (« être couché »)."
  ],
  "lang": "Gaulois",
  "lang_code": "gaulois",
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "word": "loga"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Urne, vase."
      ],
      "id": "fr-longa-gaulois-noun-FMUsArrY"
    }
  ],
  "word": "longa"
}

{
  "categories": [
    "Mots attestés en gaulois",
    "Mots en gaulois issus d’un mot en indo-européen commun",
    "Noms communs en gaulois",
    "gaulois",
    "Étymologies en gaulois incluant une reconstruction"
  ],
  "etymology_texts": [
    "Mot lu dans l’inscription de Todi (E-5), en gallo-étrusque sous la forme 𐌋𐌏𐌊𐌀𐌍.",
    "De l’indo-européen commun *legh- (« être couché »)."
  ],
  "lang": "Gaulois",
  "lang_code": "gaulois",
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "word": "loga"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Urne, vase."
      ]
    }
  ],
  "word": "longa"
}