"feu grégeois" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "grégeois",
        "3": "",
        "4": "Greek"
      },
      "expansion": "grégeois (“Greek”)",
      "name": "m"
    },
    {
      "args": {
        "1": "fr",
        "2": "grec"
      },
      "expansion": "grec",
      "name": "m"
    }
  ],
  "etymology_text": "Uses the archaic grégeois (“Greek”) rather than the modern grec.",
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "-"
      },
      "expansion": "feu grégeois m (uncountable)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Byzantine Empire",
          "orig": "fr:Byzantine Empire",
          "parents": [
            "Ancient Europe",
            "Ancient Near East",
            "History of Asia",
            "History of Europe",
            "History of Greece",
            "History of Turkey",
            "Ancient history",
            "Ancient Asia",
            "Asia",
            "History",
            "Europe",
            "Greece",
            "Turkey",
            "Earth",
            "Eurasia",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Greek fire"
      ],
      "id": "en-feu_grégeois-fr-noun-8J7TnINn",
      "links": [
        [
          "Greek fire",
          "Greek fire"
        ]
      ],
      "tags": [
        "masculine",
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/fø ɡʁe.ʒwa/"
    }
  ],
  "word": "feu grégeois"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "grégeois",
        "3": "",
        "4": "Greek"
      },
      "expansion": "grégeois (“Greek”)",
      "name": "m"
    },
    {
      "args": {
        "1": "fr",
        "2": "grec"
      },
      "expansion": "grec",
      "name": "m"
    }
  ],
  "etymology_text": "Uses the archaic grégeois (“Greek”) rather than the modern grec.",
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "-"
      },
      "expansion": "feu grégeois m (uncountable)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French entries with incorrect language header",
        "French lemmas",
        "French masculine nouns",
        "French multiword terms",
        "French nouns",
        "French terms with IPA pronunciation",
        "French uncountable nouns",
        "fr:Byzantine Empire"
      ],
      "glosses": [
        "Greek fire"
      ],
      "links": [
        [
          "Greek fire",
          "Greek fire"
        ]
      ],
      "tags": [
        "masculine",
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/fø ɡʁe.ʒwa/"
    }
  ],
  "word": "feu grégeois"
}