"Mezheven" meaning in Breton

{
  "etymology_templates": [
    {
      "args": {
        "1": "br",
        "2": "cel-pro",
        "3": "*medyo-samīno-",
        "4": "",
        "5": "middle of summer"
      },
      "expansion": "Proto-Celtic *medyo-samīno- (“middle of summer”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "ga",
        "2": "Meitheamh"
      },
      "expansion": "Irish Meitheamh",
      "name": "cog"
    },
    {
      "args": {
        "1": "cy",
        "2": "Mehefin"
      },
      "expansion": "Welsh Mehefin",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Celtic *medyo-samīno- (“middle of summer”) (compare Irish Meitheamh, Welsh Mehefin).",
  "forms": [
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "br-noun-mutation",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "Mezheven",
      "source": "mutation",
      "tags": [
        "mutation",
        "singular",
        "unmutated"
      ]
    },
    {
      "form": "Vezheven",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-soft",
        "singular"
      ]
    },
    {
      "form": "M{{{3}}}",
      "source": "mutation",
      "tags": [
        "mutation",
        "plural",
        "unmutated"
      ]
    },
    {
      "form": "V{{{3}}}",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-soft",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "br",
        "2": "proper noun",
        "g": "m"
      },
      "expansion": "Mezheven m",
      "name": "head"
    }
  ],
  "inflection_templates": [
    {
      "args": {
        "1": "M",
        "2": "ezheven"
      },
      "name": "br-noun-mutation"
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Breton entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Breton entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "br",
          "name": "Months",
          "orig": "br:Months",
          "parents": [
            "Periodic occurrences",
            "Time",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "June"
      ],
      "id": "en-Mezheven-br-name-1YCMDgpH",
      "links": [
        [
          "June",
          "June#English"
        ]
      ],
      "related": [
        {
          "sense": "month",
          "word": "Previous: Mae. Next: Gouere"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/me.ˈze.vɛ̃n/"
    }
  ],
  "word": "Mezheven"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "br",
        "2": "cel-pro",
        "3": "*medyo-samīno-",
        "4": "",
        "5": "middle of summer"
      },
      "expansion": "Proto-Celtic *medyo-samīno- (“middle of summer”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "ga",
        "2": "Meitheamh"
      },
      "expansion": "Irish Meitheamh",
      "name": "cog"
    },
    {
      "args": {
        "1": "cy",
        "2": "Mehefin"
      },
      "expansion": "Welsh Mehefin",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Celtic *medyo-samīno- (“middle of summer”) (compare Irish Meitheamh, Welsh Mehefin).",
  "forms": [
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "br-noun-mutation",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "Mezheven",
      "source": "mutation",
      "tags": [
        "mutation",
        "singular",
        "unmutated"
      ]
    },
    {
      "form": "Vezheven",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-soft",
        "singular"
      ]
    },
    {
      "form": "M{{{3}}}",
      "source": "mutation",
      "tags": [
        "mutation",
        "plural",
        "unmutated"
      ]
    },
    {
      "form": "V{{{3}}}",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-soft",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "br",
        "2": "proper noun",
        "g": "m"
      },
      "expansion": "Mezheven m",
      "name": "head"
    }
  ],
  "inflection_templates": [
    {
      "args": {
        "1": "M",
        "2": "ezheven"
      },
      "name": "br-noun-mutation"
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "name",
  "related": [
    {
      "sense": "month",
      "word": "Previous: Mae. Next: Gouere"
    }
  ],
  "senses": [
    {
      "categories": [
        "Breton entries with incorrect language header",
        "Breton entries with topic categories using raw markup",
        "Breton lemmas",
        "Breton masculine nouns",
        "Breton proper nouns",
        "Breton terms derived from Proto-Celtic",
        "Breton terms inherited from Proto-Celtic",
        "Breton terms with IPA pronunciation",
        "br:Months"
      ],
      "glosses": [
        "June"
      ],
      "links": [
        [
          "June",
          "June#English"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/me.ˈze.vɛ̃n/"
    }
  ],
  "word": "Mezheven"
}