"an and twentig" meaning in Old English

{
  "etymology_templates": [
    {
      "args": {
        "1": "ang",
        "2": "gmw-pro",
        "3": "*ain andi twaintig"
      },
      "expansion": "Proto-West Germanic *ain andi twaintig",
      "name": "inh"
    }
  ],
  "etymology_text": "From Proto-West Germanic *ain andi twaintig.",
  "forms": [
    {
      "form": "ān and twēntiġ",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ang",
        "2": "numeral",
        "head": "ān and twēntiġ"
      },
      "expansion": "ān and twēntiġ",
      "name": "head"
    }
  ],
  "lang": "Old English",
  "lang_code": "ang",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "name": "Old English cardinal numbers",
          "parents": [
            "Cardinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "twenty-one"
      ],
      "id": "en-an_and_twentig-ang-num-pp7bSJ9O",
      "links": [
        [
          "twenty-one",
          "twenty-one"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɑːn ɑnd ˈtweːn.tij/"
    }
  ],
  "word": "an and twentig"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ang",
        "2": "gmw-pro",
        "3": "*ain andi twaintig"
      },
      "expansion": "Proto-West Germanic *ain andi twaintig",
      "name": "inh"
    }
  ],
  "etymology_text": "From Proto-West Germanic *ain andi twaintig.",
  "forms": [
    {
      "form": "ān and twēntiġ",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ang",
        "2": "numeral",
        "head": "ān and twēntiġ"
      },
      "expansion": "ān and twēntiġ",
      "name": "head"
    }
  ],
  "lang": "Old English",
  "lang_code": "ang",
  "pos": "num",
  "senses": [
    {
      "categories": [
        "Old English cardinal numbers",
        "Old English entries with incorrect language header",
        "Old English lemmas",
        "Old English multiword terms",
        "Old English numerals",
        "Old English terms derived from Proto-West Germanic",
        "Old English terms inherited from Proto-West Germanic",
        "Old English terms with IPA pronunciation",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "twenty-one"
      ],
      "links": [
        [
          "twenty-one",
          "twenty-one"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɑːn ɑnd ˈtweːn.tij/"
    }
  ],
  "word": "an and twentig"
}