"mentel" meaning in Breton

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots en breton issus d’un mot en vieux breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Breton",
      "orig": "breton",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Du vieux breton montol, menntaul.",
    "→ voir ment.",
    "À comparer avec les mots mantol en gallois et en cornique (sens identique)."
  ],
  "forms": [
    {
      "form": "mentell"
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Balance (instrument)."
      ],
      "id": "fr-mentel-br-noun-0zQ6WXWK"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈmẽntɛl\\"
    }
  ],
  "synonyms": [
    {
      "word": "balañs"
    },
    {
      "word": "pouezerez"
    }
  ],
  "tags": [
    "feminine",
    "plural"
  ],
  "word": "mentel"
}

{
  "categories": [
    "Mots en breton issus d’un mot en vieux breton",
    "Noms communs en breton",
    "breton"
  ],
  "etymology_texts": [
    "Du vieux breton montol, menntaul.",
    "→ voir ment.",
    "À comparer avec les mots mantol en gallois et en cornique (sens identique)."
  ],
  "forms": [
    {
      "form": "mentell"
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Balance (instrument)."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈmẽntɛl\\"
    }
  ],
  "synonyms": [
    {
      "word": "balañs"
    },
    {
      "word": "pouezerez"
    }
  ],
  "tags": [
    "feminine",
    "plural"
  ],
  "word": "mentel"
}