"nemo-" 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"
    }
  ],
  "derived": [
    {
      "word": "nemeton"
    }
  ],
  "etymology_texts": [
    "De l’indo-européen commun *nem- (« courber »).",
    "À comparer avec les mots neñv en breton, nef en gallois et cornique, neamh en gaélique (sens identique)."
  ],
  "lang": "Gaulois",
  "lang_code": "gaulois",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Ciel."
      ],
      "id": "fr-nemo--gaulois-noun-DP0DKfU0"
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en gaulois de la mythologie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Voûte céleste."
      ],
      "id": "fr-nemo--gaulois-noun-O9L4y09-",
      "topics": [
        "mythology"
      ]
    }
  ],
  "word": "nemo-"
}

{
  "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"
  ],
  "derived": [
    {
      "word": "nemeton"
    }
  ],
  "etymology_texts": [
    "De l’indo-européen commun *nem- (« courber »).",
    "À comparer avec les mots neñv en breton, nef en gallois et cornique, neamh en gaélique (sens identique)."
  ],
  "lang": "Gaulois",
  "lang_code": "gaulois",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Ciel."
      ]
    },
    {
      "categories": [
        "Lexique en gaulois de la mythologie"
      ],
      "glosses": [
        "Voûte céleste."
      ],
      "topics": [
        "mythology"
      ]
    }
  ],
  "word": "nemo-"
}