"desque" meaning in Ancien français

{
  "categories": [
    {
      "kind": "other",
      "name": "Conjonctions en ancien français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Ancien français",
      "orig": "ancien français",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "conj",
  "pos_title": "Conjonction",
  "senses": [
    {
      "alt_of": [
        {
          "word": "dusque"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en ancien français",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Psautier d’Oxford,édition de Francisque Michel, p. 16, circa 1100-50",
          "text": "desque en fin",
          "translation": "jusqu’à la fin"
        }
      ],
      "glosses": [
        "Variante de dusque."
      ],
      "id": "fr-desque-fro-conj-9Jr5x0S-",
      "tags": [
        "alt-of"
      ]
    }
  ],
  "word": "desque"
}

{
  "categories": [
    "Conjonctions en ancien français",
    "ancien français"
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "conj",
  "pos_title": "Conjonction",
  "senses": [
    {
      "alt_of": [
        {
          "word": "dusque"
        }
      ],
      "categories": [
        "Exemples en ancien français"
      ],
      "examples": [
        {
          "ref": "Psautier d’Oxford,édition de Francisque Michel, p. 16, circa 1100-50",
          "text": "desque en fin",
          "translation": "jusqu’à la fin"
        }
      ],
      "glosses": [
        "Variante de dusque."
      ],
      "tags": [
        "alt-of"
      ]
    }
  ],
  "word": "desque"
}