"еста" meaning in Old East Slavic

{
  "etymology_templates": [
    {
      "args": {
        "1": "Inherited"
      },
      "expansion": "Inherited",
      "name": "glossary"
    },
    {
      "args": {
        "1": "orv",
        "2": "sla-pro",
        "3": "*esta",
        "4": "",
        "5": "",
        "g": "",
        "g2": "",
        "g3": "",
        "id": "",
        "lit": "",
        "nocat": "",
        "pos": "",
        "sc": "",
        "sort": "",
        "tr": "",
        "ts": ""
      },
      "expansion": "Proto-Slavic *esta",
      "name": "inh"
    },
    {
      "args": {
        "1": "orv",
        "2": "sla-pro",
        "3": "*esta"
      },
      "expansion": "Inherited from Proto-Slavic *esta",
      "name": "inh+"
    },
    {
      "args": {
        "1": "cu",
        "2": "еста"
      },
      "expansion": "Old Church Slavonic еста (esta)",
      "name": "cog"
    }
  ],
  "etymology_text": "Inherited from Proto-Slavic *esta, verb form of *byti. Akin to Old Church Slavonic еста (esta).",
  "forms": [
    {
      "form": "jesta",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "orv",
        "2": "verb form"
      },
      "expansion": "еста (jesta)",
      "name": "head"
    }
  ],
  "lang": "Old East Slavic",
  "lang_code": "orv",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old East Slavic entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "(byti); (you two, they two) are",
          "word": "бꙑти"
        }
      ],
      "glosses": [
        "second/third-person dual present indicative of бꙑти (byti); (you two, they two) are"
      ],
      "id": "en-еста-orv-verb-QsXpGh4a",
      "links": [
        [
          "бꙑти",
          "бꙑти#Old_East_Slavic"
        ],
        [
          "you",
          "you"
        ],
        [
          "they",
          "they"
        ],
        [
          "are",
          "are"
        ]
      ],
      "tags": [
        "dual",
        "form-of",
        "indicative",
        "present",
        "second-person",
        "third-person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈjɛstɑ/"
    },
    {
      "ipa": "/ˈjɛsta/"
    },
    {
      "ipa": "/ˈjɛsta/"
    },
    {
      "ipa": "/ˈjɛstɑ/",
      "note": "ca. 9ᵗʰ CE"
    },
    {
      "ipa": "/ˈjɛsta/",
      "note": "ca. 11ᵗʰ CE"
    },
    {
      "ipa": "/ˈjɛsta/",
      "note": "ca. 13ᵗʰ CE"
    }
  ],
  "word": "еста"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "Inherited"
      },
      "expansion": "Inherited",
      "name": "glossary"
    },
    {
      "args": {
        "1": "orv",
        "2": "sla-pro",
        "3": "*esta",
        "4": "",
        "5": "",
        "g": "",
        "g2": "",
        "g3": "",
        "id": "",
        "lit": "",
        "nocat": "",
        "pos": "",
        "sc": "",
        "sort": "",
        "tr": "",
        "ts": ""
      },
      "expansion": "Proto-Slavic *esta",
      "name": "inh"
    },
    {
      "args": {
        "1": "orv",
        "2": "sla-pro",
        "3": "*esta"
      },
      "expansion": "Inherited from Proto-Slavic *esta",
      "name": "inh+"
    },
    {
      "args": {
        "1": "cu",
        "2": "еста"
      },
      "expansion": "Old Church Slavonic еста (esta)",
      "name": "cog"
    }
  ],
  "etymology_text": "Inherited from Proto-Slavic *esta, verb form of *byti. Akin to Old Church Slavonic еста (esta).",
  "forms": [
    {
      "form": "jesta",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "orv",
        "2": "verb form"
      },
      "expansion": "еста (jesta)",
      "name": "head"
    }
  ],
  "lang": "Old East Slavic",
  "lang_code": "orv",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Old East Slavic entries with incorrect language header",
        "Old East Slavic non-lemma forms",
        "Old East Slavic terms derived from Proto-Slavic",
        "Old East Slavic terms inherited from Proto-Slavic",
        "Old East Slavic terms with IPA pronunciation",
        "Old East Slavic verb forms",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "form_of": [
        {
          "extra": "(byti); (you two, they two) are",
          "word": "бꙑти"
        }
      ],
      "glosses": [
        "second/third-person dual present indicative of бꙑти (byti); (you two, they two) are"
      ],
      "links": [
        [
          "бꙑти",
          "бꙑти#Old_East_Slavic"
        ],
        [
          "you",
          "you"
        ],
        [
          "they",
          "they"
        ],
        [
          "are",
          "are"
        ]
      ],
      "tags": [
        "dual",
        "form-of",
        "indicative",
        "present",
        "second-person",
        "third-person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈjɛstɑ/"
    },
    {
      "ipa": "/ˈjɛsta/"
    },
    {
      "ipa": "/ˈjɛsta/"
    },
    {
      "ipa": "/ˈjɛstɑ/",
      "note": "ca. 9ᵗʰ CE"
    },
    {
      "ipa": "/ˈjɛsta/",
      "note": "ca. 11ᵗʰ CE"
    },
    {
      "ipa": "/ˈjɛsta/",
      "note": "ca. 13ᵗʰ CE"
    }
  ],
  "word": "еста"
}