"берковец" meaning in Russe

{
  "categories": [
    {
      "kind": "other",
      "name": "Lemmes en russe",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en russe",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Russe",
      "orig": "russe",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "lang": "Polonais",
      "lang_code": "pl",
      "word": "bierkowiec"
    }
  ],
  "etymology_texts": [
    "Ancien dérivé de Бирка, Birka, important centre commercial viking situé en Suède sur l’île de Björkö, apparenté à björk."
  ],
  "lang": "Russe",
  "lang_code": "ru",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "berkovec"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Termes désuets en russe",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Unités de mesure de masse en russe",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en russe",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Ancienne unité de masse équivalent à 10 пуд ou 164 kilogrammes."
      ],
      "id": "fr-берковец-ru-noun-B2XYFmRn",
      "tags": [
        "obsolete"
      ],
      "topics": [
        "metrology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\bʲerkəvʲɪt͡s\\"
    }
  ],
  "tags": [
    "inanimate",
    "masculine"
  ],
  "word": "берковец"
}

{
  "categories": [
    "Lemmes en russe",
    "Noms communs en russe",
    "russe"
  ],
  "derived": [
    {
      "lang": "Polonais",
      "lang_code": "pl",
      "word": "bierkowiec"
    }
  ],
  "etymology_texts": [
    "Ancien dérivé de Бирка, Birka, important centre commercial viking situé en Suède sur l’île de Björkö, apparenté à björk."
  ],
  "lang": "Russe",
  "lang_code": "ru",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "berkovec"
  ],
  "senses": [
    {
      "categories": [
        "Termes désuets en russe",
        "Unités de mesure de masse en russe",
        "Wiktionnaire:Exemples manquants en russe"
      ],
      "glosses": [
        "Ancienne unité de masse équivalent à 10 пуд ou 164 kilogrammes."
      ],
      "tags": [
        "obsolete"
      ],
      "topics": [
        "metrology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\bʲerkəvʲɪt͡s\\"
    }
  ],
  "tags": [
    "inanimate",
    "masculine"
  ],
  "word": "берковец"
}