"тунда" meaning in Erzya

{
  "etymology_text": "Presumably a fossilized essive case form of тундо, with development of such kind: *tundəna → *tundna → тунда.",
  "forms": [
    {
      "form": "tunda",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "myv",
        "2": "adverbs"
      },
      "expansion": "тунда • (tunda)",
      "name": "head"
    }
  ],
  "lang": "Erzya",
  "lang_code": "myv",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Erzya entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "myv",
          "name": "Seasons",
          "orig": "myv:Seasons",
          "parents": [
            "Nature",
            "Periodic occurrences",
            "All topics",
            "Time",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "It was last spring.",
          "roman": "Te ulneś jutaź ijeń tunda .",
          "text": "Те ульнесь ютазь иень тунда.",
          "type": "example"
        }
      ],
      "glosses": [
        "in spring"
      ],
      "id": "en-тунда-myv-adv-YrJYIhRg",
      "links": [
        [
          "spring",
          "spring"
        ]
      ]
    }
  ],
  "word": "тунда"
}

{
  "etymology_text": "Presumably a fossilized essive case form of тундо, with development of such kind: *tundəna → *tundna → тунда.",
  "forms": [
    {
      "form": "tunda",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "myv",
        "2": "adverbs"
      },
      "expansion": "тунда • (tunda)",
      "name": "head"
    }
  ],
  "lang": "Erzya",
  "lang_code": "myv",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Erzya adverbs",
        "Erzya entries with incorrect language header",
        "Erzya lemmas",
        "Erzya terms with usage examples",
        "Pages with 2 entries",
        "Pages with entries",
        "Requests for pronunciation in Erzya entries",
        "myv:Seasons"
      ],
      "examples": [
        {
          "english": "It was last spring.",
          "roman": "Te ulneś jutaź ijeń tunda .",
          "text": "Те ульнесь ютазь иень тунда.",
          "type": "example"
        }
      ],
      "glosses": [
        "in spring"
      ],
      "links": [
        [
          "spring",
          "spring"
        ]
      ]
    }
  ],
  "word": "тунда"
}