"plaint" meaning in Ancien français

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms communs en ancien français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Ancien français",
      "orig": "ancien français",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en ancien français",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en ancien français à traduire",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Vie de sainte Marie l’Égyptienne,ms. 23112 de la BnF, f. 340v. a.",
          "text": "Grant plaint jeta et moult ert las"
        },
        {
          "ref": "idem, ms. 3516 de la Bibliothèque de l’Arsenal, f. 116r. c.",
          "text": "Grans plains jete …"
        }
      ],
      "glosses": [
        "Plainte."
      ],
      "id": "fr-plaint-fro-noun-TvDaihjD"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "plaint"
}

{
  "categories": [
    "Noms communs en ancien français",
    "ancien français"
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Exemples en ancien français",
        "Exemples en ancien français à traduire"
      ],
      "examples": [
        {
          "ref": "Vie de sainte Marie l’Égyptienne,ms. 23112 de la BnF, f. 340v. a.",
          "text": "Grant plaint jeta et moult ert las"
        },
        {
          "ref": "idem, ms. 3516 de la Bibliothèque de l’Arsenal, f. 116r. c.",
          "text": "Grans plains jete …"
        }
      ],
      "glosses": [
        "Plainte."
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "plaint"
}