"frīadag" meaning in Vieux haut allemand

{
  "categories": [
    {
      "kind": "other",
      "name": "Jours de la semaine en vieux haut allemand",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en vieux haut allemand",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Vieux haut allemand",
      "orig": "vieux haut allemand",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "frīgetag"
    },
    {
      "form": "frījetag"
    },
    {
      "form": "frītach"
    }
  ],
  "lang": "Vieux haut allemand",
  "lang_code": "goh",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Vendredi."
      ],
      "id": "fr-frīadag-goh-noun-roDfn2fA"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "frīadag"
}

{
  "categories": [
    "Jours de la semaine en vieux haut allemand",
    "Noms communs en vieux haut allemand",
    "vieux haut allemand"
  ],
  "forms": [
    {
      "form": "frīgetag"
    },
    {
      "form": "frījetag"
    },
    {
      "form": "frītach"
    }
  ],
  "lang": "Vieux haut allemand",
  "lang_code": "goh",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Vendredi."
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "frīadag"
}