"flat" meaning in Ancien français

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots en ancien français issus d’un mot en vieux-francique",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en ancien français issus d’une onomatopée",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en ancien français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Ancien français",
      "orig": "ancien français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Étymologies en ancien français incluant une reconstruction",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "lang": "Français",
      "lang_code": "fr",
      "word": "flat"
    }
  ],
  "etymology_texts": [
    "De l’ancien bas vieux-francique ^([1]) *flat (« plat »). Ou d’une onomatopée fla ^([2]) diversement terminée (voir les variantes)."
  ],
  "forms": [
    {
      "form": "flac"
    },
    {
      "form": "flas"
    }
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "translation": "jeter, précipiter",
      "word": "flater"
    },
    {
      "translation": "battre des mains",
      "word": "flateler"
    },
    {
      "translation": "jeter, précipiter",
      "word": "flateur"
    },
    {
      "word": "flatir"
    },
    {
      "translation": "jeter à terre",
      "word": "aflatir"
    }
  ],
  "senses": [
    {
      "examples": [
        {
          "text": "tout a flat, tout d’un coup."
        }
      ],
      "glosses": [
        "Tape, soufflet, coup violent."
      ],
      "id": "fr-flat-fro-noun-TIColLvb"
    },
    {
      "glosses": [
        "Chute."
      ],
      "id": "fr-flat-fro-noun-o-~YiR-E"
    },
    {
      "glosses": [
        "Floc, bruit d’une chose qui tombe."
      ],
      "id": "fr-flat-fro-noun-gyka0oNL"
    },
    {
      "glosses": [
        "Clapotement, glouglou."
      ],
      "id": "fr-flat-fro-noun-ori6Nh1I"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "flat"
}

{
  "categories": [
    "Mots en ancien français issus d’un mot en vieux-francique",
    "Mots en ancien français issus d’une onomatopée",
    "Noms communs en ancien français",
    "ancien français",
    "Étymologies en ancien français incluant une reconstruction"
  ],
  "derived": [
    {
      "lang": "Français",
      "lang_code": "fr",
      "word": "flat"
    }
  ],
  "etymology_texts": [
    "De l’ancien bas vieux-francique ^([1]) *flat (« plat »). Ou d’une onomatopée fla ^([2]) diversement terminée (voir les variantes)."
  ],
  "forms": [
    {
      "form": "flac"
    },
    {
      "form": "flas"
    }
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "translation": "jeter, précipiter",
      "word": "flater"
    },
    {
      "translation": "battre des mains",
      "word": "flateler"
    },
    {
      "translation": "jeter, précipiter",
      "word": "flateur"
    },
    {
      "word": "flatir"
    },
    {
      "translation": "jeter à terre",
      "word": "aflatir"
    }
  ],
  "senses": [
    {
      "examples": [
        {
          "text": "tout a flat, tout d’un coup."
        }
      ],
      "glosses": [
        "Tape, soufflet, coup violent."
      ]
    },
    {
      "glosses": [
        "Chute."
      ]
    },
    {
      "glosses": [
        "Floc, bruit d’une chose qui tombe."
      ]
    },
    {
      "glosses": [
        "Clapotement, glouglou."
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "flat"
}