"въ-" meaning in Old Church Slavonic

{
  "etymology_templates": [
    {
      "args": {
        "1": "cu",
        "2": "sla-pro",
        "3": "*vъ(n)-"
      },
      "expansion": "Proto-Slavic *vъ(n)-",
      "name": "inh"
    },
    {
      "args": {
        "1": "cu",
        "2": "ine-pro",
        "3": "*h₁én"
      },
      "expansion": "Proto-Indo-European *h₁én",
      "name": "inh"
    },
    {
      "args": {
        "1": "sla-pro",
        "2": "*vъ(n)"
      },
      "expansion": "Proto-Slavic *vъ(n)",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Slavic *vъ(n)-, from Proto-Indo-European *h₁én. The /n/ persists in вънити (vŭniti). See also Proto-Slavic *vъ(n).",
  "forms": [
    {
      "form": "vŭ-",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cu",
        "2": "prefix",
        "cat2": "verbal prefixes"
      },
      "expansion": "въ- • (vŭ-)",
      "name": "head"
    }
  ],
  "lang": "Old Church Slavonic",
  "lang_code": "cu",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Church Slavonic 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"
        }
      ],
      "examples": [
        {
          "text": "вън- (vŭn-) + -ити (-iti, “to go”) → вънити (vŭniti, “to go in, to enter”)"
        }
      ],
      "glosses": [
        "in, into (describing an action of moving inside of something)"
      ],
      "id": "en-въ--cu-prefix-fsBo7oz4",
      "links": [
        [
          "in",
          "in"
        ],
        [
          "into",
          "into"
        ]
      ],
      "related": [
        {
          "roman": "vŭ",
          "word": "въ"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "въ-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "cu",
        "2": "sla-pro",
        "3": "*vъ(n)-"
      },
      "expansion": "Proto-Slavic *vъ(n)-",
      "name": "inh"
    },
    {
      "args": {
        "1": "cu",
        "2": "ine-pro",
        "3": "*h₁én"
      },
      "expansion": "Proto-Indo-European *h₁én",
      "name": "inh"
    },
    {
      "args": {
        "1": "sla-pro",
        "2": "*vъ(n)"
      },
      "expansion": "Proto-Slavic *vъ(n)",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Slavic *vъ(n)-, from Proto-Indo-European *h₁én. The /n/ persists in вънити (vŭniti). See also Proto-Slavic *vъ(n).",
  "forms": [
    {
      "form": "vŭ-",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cu",
        "2": "prefix",
        "cat2": "verbal prefixes"
      },
      "expansion": "въ- • (vŭ-)",
      "name": "head"
    }
  ],
  "lang": "Old Church Slavonic",
  "lang_code": "cu",
  "pos": "prefix",
  "related": [
    {
      "roman": "vŭ",
      "word": "въ"
    }
  ],
  "senses": [
    {
      "categories": [
        "Old Church Slavonic entries with incorrect language header",
        "Old Church Slavonic lemmas",
        "Old Church Slavonic prefixes",
        "Old Church Slavonic terms derived from Proto-Indo-European",
        "Old Church Slavonic terms derived from Proto-Slavic",
        "Old Church Slavonic terms inherited from Proto-Indo-European",
        "Old Church Slavonic terms inherited from Proto-Slavic",
        "Old Church Slavonic verbal prefixes",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "вън- (vŭn-) + -ити (-iti, “to go”) → вънити (vŭniti, “to go in, to enter”)"
        }
      ],
      "glosses": [
        "in, into (describing an action of moving inside of something)"
      ],
      "links": [
        [
          "in",
          "in"
        ],
        [
          "into",
          "into"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "въ-"
}