"Бѣло Езеро" meaning in Old East Slavic

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ru",
            "2": "Белоо́зеро"
          },
          "expansion": "Russian: Белоо́зеро (Beloózero)",
          "name": "desc"
        }
      ],
      "text": "Russian: Белоо́зеро (Beloózero)"
    }
  ],
  "forms": [
    {
      "form": "Bělo Ezero",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "orv",
        "2": "proper noun",
        "g": "m",
        "head": "Бѣло Езеро"
      },
      "expansion": "Бѣло Езеро (Bělo Ezero) m",
      "name": "head"
    }
  ],
  "lang": "Old East Slavic",
  "lang_code": "orv",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old East Slavic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "orv",
          "name": "Lakes",
          "orig": "orv:Lakes",
          "parents": [
            "Bodies of water",
            "Places",
            "Landforms",
            "Water",
            "Names",
            "Earth",
            "Liquids",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Nature",
            "Matter",
            "Fundamental",
            "Nouns",
            "Chemistry",
            "Lemmas",
            "Sciences"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "orv",
          "name": "Places in Russia",
          "orig": "orv:Places in Russia",
          "parents": [
            "Places",
            "Names",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Beloozero (a lake in Russia)"
      ],
      "id": "en-Бѣло_Езеро-orv-name-PeR4M7Wr",
      "links": [
        [
          "Beloozero",
          "Beloozero#English"
        ],
        [
          "Russia",
          "Russia#English"
        ]
      ],
      "synonyms": [
        {
          "roman": "Bělo Jezero",
          "word": "Бѣло Ѥзеро"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/beːlɔ ˈɛzɛrɔ/"
    },
    {
      "ipa": "/bʲeːlɔ ˈɛzʲɛrɔ/"
    },
    {
      "ipa": "/bʲeːlɔ ˈɛzʲɛrɔ/"
    },
    {
      "ipa": "/beːlɔ ˈɛzɛrɔ/",
      "note": "ca. 9ᵗʰ CE"
    },
    {
      "ipa": "/bʲeːlɔ ˈɛzʲɛrɔ/",
      "note": "ca. 11ᵗʰ CE"
    },
    {
      "ipa": "/bʲeːlɔ ˈɛzʲɛrɔ/",
      "note": "ca. 13ᵗʰ CE"
    }
  ],
  "word": "Бѣло Езеро"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ru",
            "2": "Белоо́зеро"
          },
          "expansion": "Russian: Белоо́зеро (Beloózero)",
          "name": "desc"
        }
      ],
      "text": "Russian: Белоо́зеро (Beloózero)"
    }
  ],
  "forms": [
    {
      "form": "Bělo Ezero",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "orv",
        "2": "proper noun",
        "g": "m",
        "head": "Бѣло Езеро"
      },
      "expansion": "Бѣло Езеро (Bělo Ezero) m",
      "name": "head"
    }
  ],
  "lang": "Old East Slavic",
  "lang_code": "orv",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Old East Slavic entries with incorrect language header",
        "Old East Slavic lemmas",
        "Old East Slavic masculine nouns",
        "Old East Slavic multiword terms",
        "Old East Slavic proper nouns",
        "Old East Slavic terms with IPA pronunciation",
        "Old East Slavic terms with redundant head parameter",
        "Pages with 1 entry",
        "Pages with entries",
        "orv:Lakes",
        "orv:Places in Russia"
      ],
      "glosses": [
        "Beloozero (a lake in Russia)"
      ],
      "links": [
        [
          "Beloozero",
          "Beloozero#English"
        ],
        [
          "Russia",
          "Russia#English"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/beːlɔ ˈɛzɛrɔ/"
    },
    {
      "ipa": "/bʲeːlɔ ˈɛzʲɛrɔ/"
    },
    {
      "ipa": "/bʲeːlɔ ˈɛzʲɛrɔ/"
    },
    {
      "ipa": "/beːlɔ ˈɛzɛrɔ/",
      "note": "ca. 9ᵗʰ CE"
    },
    {
      "ipa": "/bʲeːlɔ ˈɛzʲɛrɔ/",
      "note": "ca. 11ᵗʰ CE"
    },
    {
      "ipa": "/bʲeːlɔ ˈɛzʲɛrɔ/",
      "note": "ca. 13ᵗʰ CE"
    }
  ],
  "synonyms": [
    {
      "roman": "Bělo Jezero",
      "word": "Бѣло Ѥзеро"
    }
  ],
  "word": "Бѣло Езеро"
}