"bes" meaning in Middle English

{
  "etymology_text": "A version of bith with the third-person singular ending replaced with -es as in other verbs (in some dialects) and the vowel of the infinitive been leveled in.",
  "head_templates": [
    {
      "args": {
        "1": "enm",
        "2": "verb form"
      },
      "expansion": "bes",
      "name": "head"
    }
  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "bith"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Middle English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 23 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "alternative form of bith"
      ],
      "id": "en-bes-enm-verb-J8k9Lpv8",
      "links": [
        [
          "bith",
          "bith#Middle_English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "bes"
}

{
  "etymology_text": "A version of bith with the third-person singular ending replaced with -es as in other verbs (in some dialects) and the vowel of the infinitive been leveled in.",
  "head_templates": [
    {
      "args": {
        "1": "enm",
        "2": "verb form"
      },
      "expansion": "bes",
      "name": "head"
    }
  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "bith"
        }
      ],
      "categories": [
        "Middle English entries with incorrect language header",
        "Middle English non-lemma forms",
        "Middle English verb forms",
        "Pages with 23 entries",
        "Pages with entries"
      ],
      "glosses": [
        "alternative form of bith"
      ],
      "links": [
        [
          "bith",
          "bith#Middle_English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "bes"
}