"praslovančina" meaning in Slovak

{
  "etymology_templates": [
    {
      "args": {
        "1": "sk",
        "2": "pra-",
        "3": "slovanský",
        "4": "-ina"
      },
      "expansion": "pra- + slovanský + -ina",
      "name": "af"
    }
  ],
  "etymology_text": "From pra- + slovanský + -ina.",
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "praslovančina f",
      "name": "sk-noun"
    }
  ],
  "lang": "Slovak",
  "lang_code": "sk",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Slovak entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Slovak terms prefixed with pra-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Slovak terms suffixed with -ina",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "sk",
          "name": "Languages",
          "orig": "sk:Languages",
          "parents": [
            "Language",
            "Names",
            "Communication",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Proto-Slavic"
      ],
      "id": "en-praslovančina-sk-noun-5s2ciJRk",
      "links": [
        [
          "Proto-Slavic",
          "Proto-Slavic"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "praslovančina"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "sk",
        "2": "pra-",
        "3": "slovanský",
        "4": "-ina"
      },
      "expansion": "pra- + slovanský + -ina",
      "name": "af"
    }
  ],
  "etymology_text": "From pra- + slovanský + -ina.",
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "praslovančina f",
      "name": "sk-noun"
    }
  ],
  "lang": "Slovak",
  "lang_code": "sk",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Slovak entries with incorrect language header",
        "Slovak feminine nouns",
        "Slovak lemmas",
        "Slovak nouns",
        "Slovak terms prefixed with pra-",
        "Slovak terms suffixed with -ina",
        "sk:Languages"
      ],
      "glosses": [
        "Proto-Slavic"
      ],
      "links": [
        [
          "Proto-Slavic",
          "Proto-Slavic"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "praslovančina"
}