"bist" meaning in Middle English

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "en",
            "2": "bist",
            "3": "beest"
          },
          "expansion": "English: bist, beest",
          "name": "desc"
        },
        {
          "args": {
            "1": "archaic or dialectal"
          },
          "expansion": "(archaic or dialectal)",
          "name": "q"
        }
      ],
      "text": "English: bist, beest (archaic or dialectal)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "enm",
        "2": "ang",
        "3": "bist"
      },
      "expansion": "Old English bist",
      "name": "inh"
    },
    {
      "args": {
        "1": "\"(thou) art\"; second person singular of <i class=\"Latn mention\" lang=\"ang\">bēon</i> (“to be”)"
      },
      "expansion": "(\"(thou) art\"; second person singular of bēon (“to be”))",
      "name": "gloss"
    },
    {
      "args": {
        "1": "enm",
        "2": "gem-pro",
        "3": "*biusi",
        "4": "",
        "5": "(thou) art"
      },
      "expansion": "Proto-Germanic *biusi (“(thou) art”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "enm",
        "2": "been",
        "3": "-est"
      },
      "expansion": "been + -est",
      "name": "suffix"
    }
  ],
  "etymology_text": "From Old English bist (\"(thou) art\"; second person singular of bēon (“to be”)), from Proto-Germanic *biusi (“(thou) art”), equivalent to been + -est.",
  "head_templates": [
    {
      "args": {
        "1": "enm",
        "2": "verb form"
      },
      "expansion": "bist",
      "name": "head"
    }
  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Middle English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Middle English terms suffixed with -est",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 11 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "been"
        }
      ],
      "glosses": [
        "second-person singular present indicative of been"
      ],
      "id": "en-bist-enm-verb-ZgNLpOMI",
      "links": [
        [
          "been",
          "been#Middle_English"
        ]
      ],
      "synonyms": [
        {
          "word": "beest"
        },
        {
          "word": "best"
        }
      ],
      "tags": [
        "form-of",
        "indicative",
        "present",
        "second-person",
        "singular"
      ]
    }
  ],
  "word": "bist"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "en",
            "2": "bist",
            "3": "beest"
          },
          "expansion": "English: bist, beest",
          "name": "desc"
        },
        {
          "args": {
            "1": "archaic or dialectal"
          },
          "expansion": "(archaic or dialectal)",
          "name": "q"
        }
      ],
      "text": "English: bist, beest (archaic or dialectal)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "enm",
        "2": "ang",
        "3": "bist"
      },
      "expansion": "Old English bist",
      "name": "inh"
    },
    {
      "args": {
        "1": "\"(thou) art\"; second person singular of <i class=\"Latn mention\" lang=\"ang\">bēon</i> (“to be”)"
      },
      "expansion": "(\"(thou) art\"; second person singular of bēon (“to be”))",
      "name": "gloss"
    },
    {
      "args": {
        "1": "enm",
        "2": "gem-pro",
        "3": "*biusi",
        "4": "",
        "5": "(thou) art"
      },
      "expansion": "Proto-Germanic *biusi (“(thou) art”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "enm",
        "2": "been",
        "3": "-est"
      },
      "expansion": "been + -est",
      "name": "suffix"
    }
  ],
  "etymology_text": "From Old English bist (\"(thou) art\"; second person singular of bēon (“to be”)), from Proto-Germanic *biusi (“(thou) art”), equivalent to been + -est.",
  "head_templates": [
    {
      "args": {
        "1": "enm",
        "2": "verb form"
      },
      "expansion": "bist",
      "name": "head"
    }
  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Middle English entries with incorrect language header",
        "Middle English non-lemma forms",
        "Middle English second-person singular forms",
        "Middle English terms derived from Old English",
        "Middle English terms derived from Proto-Germanic",
        "Middle English terms inherited from Old English",
        "Middle English terms inherited from Proto-Germanic",
        "Middle English terms suffixed with -est",
        "Middle English verb forms",
        "Pages with 11 entries",
        "Pages with entries"
      ],
      "form_of": [
        {
          "word": "been"
        }
      ],
      "glosses": [
        "second-person singular present indicative of been"
      ],
      "links": [
        [
          "been",
          "been#Middle_English"
        ]
      ],
      "tags": [
        "form-of",
        "indicative",
        "present",
        "second-person",
        "singular"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "beest"
    },
    {
      "word": "best"
    }
  ],
  "word": "bist"
}