"ancestre" meaning in Ancien français

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en ancien français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Ancien français",
      "orig": "ancien français",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "ancessor",
      "raw_tags": [
        "Cas sujet"
      ],
      "tags": [
        "plural"
      ]
    },
    {
      "form": "ancessor",
      "raw_tags": [
        "Cas régime"
      ],
      "tags": [
        "singular"
      ]
    },
    {
      "form": "ancessors",
      "raw_tags": [
        "Cas régime"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "noun",
  "pos_title": "Forme de 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": "Roman d’Eneas,ms. 60 français de la BnF, f. 183r. a. Le -s final de appellés est pour s’accorder avec le cas sujet singulier",
          "text": "mon ancestre … que Dardanus fu appellés"
        }
      ],
      "form_of": [
        {
          "word": "ancessor"
        }
      ],
      "glosses": [
        "Cas sujet singulier de ancessor."
      ],
      "id": "fr-ancestre-fro-noun-NnmI562q"
    }
  ],
  "tags": [
    "form-of",
    "masculine"
  ],
  "word": "ancestre"
}

{
  "categories": [
    "Formes de noms communs en ancien français",
    "ancien français"
  ],
  "forms": [
    {
      "form": "ancessor",
      "raw_tags": [
        "Cas sujet"
      ],
      "tags": [
        "plural"
      ]
    },
    {
      "form": "ancessor",
      "raw_tags": [
        "Cas régime"
      ],
      "tags": [
        "singular"
      ]
    },
    {
      "form": "ancessors",
      "raw_tags": [
        "Cas régime"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        "Exemples en ancien français",
        "Exemples en ancien français à traduire"
      ],
      "examples": [
        {
          "ref": "Roman d’Eneas,ms. 60 français de la BnF, f. 183r. a. Le -s final de appellés est pour s’accorder avec le cas sujet singulier",
          "text": "mon ancestre … que Dardanus fu appellés"
        }
      ],
      "form_of": [
        {
          "word": "ancessor"
        }
      ],
      "glosses": [
        "Cas sujet singulier de ancessor."
      ]
    }
  ],
  "tags": [
    "form-of",
    "masculine"
  ],
  "word": "ancestre"
}