"bych" meaning in Old Polish

{
  "etymology_templates": [
    {
      "args": {
        "1": "Inherited"
      },
      "expansion": "Inherited",
      "name": "glossary"
    },
    {
      "args": {
        "1": "zlw-opl",
        "2": "sla-pro",
        "3": "*byxъ",
        "4": "",
        "5": "",
        "g": "",
        "g2": "",
        "g3": "",
        "id": "",
        "lit": "",
        "nocat": "",
        "pos": "",
        "sc": "",
        "sort": "",
        "tr": "",
        "ts": ""
      },
      "expansion": "Proto-Slavic *byxъ",
      "name": "inh"
    },
    {
      "args": {
        "1": "zlw-opl",
        "2": "sla-pro",
        "3": "*byxъ"
      },
      "expansion": "Inherited from Proto-Slavic *byxъ",
      "name": "inh+"
    },
    {
      "args": {
        "1": "cs",
        "2": "bych"
      },
      "expansion": "Czech bych",
      "name": "cog"
    },
    {
      "args": {
        "1": "sh",
        "2": "bih"
      },
      "expansion": "Serbo-Croatian bih",
      "name": "cog"
    },
    {
      "args": {
        "1": "cu",
        "2": "бꙑхъ"
      },
      "expansion": "Old Church Slavonic бꙑхъ (byxŭ)",
      "name": "cog"
    }
  ],
  "etymology_text": "Inherited from Proto-Slavic *byxъ. Cognate with Czech bych, Serbo-Croatian bih, Old Church Slavonic бꙑхъ (byxŭ).",
  "head_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": "verb form"
      },
      "expansion": "bych",
      "name": "head"
    }
  ],
  "lang": "Old Polish",
  "lang_code": "zlw-opl",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Polish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "być"
        }
      ],
      "glosses": [
        "first-person singular aorist of być"
      ],
      "id": "en-bych-zlw-opl-verb-Hva1XznU",
      "links": [
        [
          "być",
          "być#Old Polish"
        ]
      ],
      "tags": [
        "aorist",
        "first-person",
        "form-of",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/bɨx/",
      "note": "10ᵗʰ–15ᵗʰ CE"
    },
    {
      "ipa": "/bɨx/",
      "note": "15ᵗʰ CE"
    }
  ],
  "word": "bych"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "Inherited"
      },
      "expansion": "Inherited",
      "name": "glossary"
    },
    {
      "args": {
        "1": "zlw-opl",
        "2": "sla-pro",
        "3": "*byxъ",
        "4": "",
        "5": "",
        "g": "",
        "g2": "",
        "g3": "",
        "id": "",
        "lit": "",
        "nocat": "",
        "pos": "",
        "sc": "",
        "sort": "",
        "tr": "",
        "ts": ""
      },
      "expansion": "Proto-Slavic *byxъ",
      "name": "inh"
    },
    {
      "args": {
        "1": "zlw-opl",
        "2": "sla-pro",
        "3": "*byxъ"
      },
      "expansion": "Inherited from Proto-Slavic *byxъ",
      "name": "inh+"
    },
    {
      "args": {
        "1": "cs",
        "2": "bych"
      },
      "expansion": "Czech bych",
      "name": "cog"
    },
    {
      "args": {
        "1": "sh",
        "2": "bih"
      },
      "expansion": "Serbo-Croatian bih",
      "name": "cog"
    },
    {
      "args": {
        "1": "cu",
        "2": "бꙑхъ"
      },
      "expansion": "Old Church Slavonic бꙑхъ (byxŭ)",
      "name": "cog"
    }
  ],
  "etymology_text": "Inherited from Proto-Slavic *byxъ. Cognate with Czech bych, Serbo-Croatian bih, Old Church Slavonic бꙑхъ (byxŭ).",
  "head_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": "verb form"
      },
      "expansion": "bych",
      "name": "head"
    }
  ],
  "lang": "Old Polish",
  "lang_code": "zlw-opl",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Old Polish entries with incorrect language header",
        "Old Polish non-lemma forms",
        "Old Polish terms derived from Proto-Slavic",
        "Old Polish terms inherited from Proto-Slavic",
        "Old Polish terms with IPA pronunciation",
        "Old Polish verb forms"
      ],
      "form_of": [
        {
          "word": "być"
        }
      ],
      "glosses": [
        "first-person singular aorist of być"
      ],
      "links": [
        [
          "być",
          "być#Old Polish"
        ]
      ],
      "tags": [
        "aorist",
        "first-person",
        "form-of",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/bɨx/",
      "note": "10ᵗʰ–15ᵗʰ CE"
    },
    {
      "ipa": "/bɨx/",
      "note": "15ᵗʰ CE"
    }
  ],
  "word": "bych"
}