"hañvar" meaning in Breton

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms communs en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Breton",
      "orig": "breton",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "→ voir hañv « été » et ar « labour à la charrue ».",
    "À comparer avec hafar en gallois, havar en cornique, *samaro- en gaulois et français dialectal somart (sens identiques).",
    "Présent en toponymie : Park an Hañvarenn."
  ],
  "forms": [
    {
      "form": "hañvarenn",
      "tags": [
        "singulative"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en breton de l’agriculture",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Jachère (des mois d’été)."
      ],
      "id": "fr-hañvar-br-noun-A5-yR5DA",
      "topics": [
        "agriculture"
      ]
    },
    {
      "glosses": [
        "Alpage, estivage."
      ],
      "id": "fr-hañvar-br-noun-XocbA-tw",
      "tags": [
        "broadly"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈhɑ̃:var\\"
    }
  ],
  "tags": [
    "collective"
  ],
  "word": "hañvar"
}

{
  "categories": [
    "Noms communs en breton",
    "breton"
  ],
  "etymology_texts": [
    "→ voir hañv « été » et ar « labour à la charrue ».",
    "À comparer avec hafar en gallois, havar en cornique, *samaro- en gaulois et français dialectal somart (sens identiques).",
    "Présent en toponymie : Park an Hañvarenn."
  ],
  "forms": [
    {
      "form": "hañvarenn",
      "tags": [
        "singulative"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Lexique en breton de l’agriculture"
      ],
      "glosses": [
        "Jachère (des mois d’été)."
      ],
      "topics": [
        "agriculture"
      ]
    },
    {
      "glosses": [
        "Alpage, estivage."
      ],
      "tags": [
        "broadly"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈhɑ̃:var\\"
    }
  ],
  "tags": [
    "collective"
  ],
  "word": "hañvar"
}