"ergol" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "grc",
        "3": "ἔργον",
        "4": "",
        "5": "work"
      },
      "expansion": "Ancient Greek ἔργον (érgon, “work”)",
      "name": "uder"
    }
  ],
  "etymology_text": "Based on Ancient Greek ἔργον (érgon, “work”).",
  "forms": [
    {
      "form": "ergols",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "ergol m (plural ergols)",
      "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": "other",
          "name": "French undefined derivations",
          "parents": [
            "Undefined derivations",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "propellant (for rockets etc)"
      ],
      "id": "en-ergol-fr-noun-7S7Hl1i7",
      "links": [
        [
          "propellant",
          "propellant"
        ]
      ],
      "tags": [
        "masculine"
      ],
      "wikipedia": [
        "fr:ergol"
      ]
    }
  ],
  "word": "ergol"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "grc",
        "3": "ἔργον",
        "4": "",
        "5": "work"
      },
      "expansion": "Ancient Greek ἔργον (érgon, “work”)",
      "name": "uder"
    }
  ],
  "etymology_text": "Based on Ancient Greek ἔργον (érgon, “work”).",
  "forms": [
    {
      "form": "ergols",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "ergol m (plural ergols)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French countable nouns",
        "French entries with incorrect language header",
        "French lemmas",
        "French masculine nouns",
        "French nouns",
        "French terms derived from Ancient Greek",
        "French undefined derivations",
        "Pages with 3 entries",
        "Pages with entries"
      ],
      "glosses": [
        "propellant (for rockets etc)"
      ],
      "links": [
        [
          "propellant",
          "propellant"
        ]
      ],
      "tags": [
        "masculine"
      ],
      "wikipedia": [
        "fr:ergol"
      ]
    }
  ],
  "word": "ergol"
}