"ert" meaning in 古法語

{
  "categories": [
    {
      "kind": "other",
      "name": "古法語動詞變位形式",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "古法語非詞元形式",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "古法語",
  "lang_code": "fro",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Inflections with a red link for lemma",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "estre"
        }
      ],
      "glosses": [
        "estre 的第三人稱單數未完成直陳"
      ],
      "id": "zh-ert-fro-verb-OVoXeDiE",
      "tags": [
        "form-of"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "iert"
    }
  ],
  "word": "ert"
}

{
  "categories": [
    "古法語動詞變位形式",
    "古法語非詞元形式"
  ],
  "lang": "古法語",
  "lang_code": "fro",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Inflections with a red link for lemma"
      ],
      "form_of": [
        {
          "word": "estre"
        }
      ],
      "glosses": [
        "estre 的第三人稱單數未完成直陳"
      ],
      "tags": [
        "form-of"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "iert"
    }
  ],
  "word": "ert"
}