"fæces" meaning in French

{
  "head_templates": [
    {
      "args": {
        "1": "f-p"
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      "expansion": "fæces f pl (plural only)",
      "name": "fr-noun"
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  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "fèces"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
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          "name": "French pluralia tantum",
          "parents": [
            "Pluralia tantum",
            "Nouns",
            "Lemmas"
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          "source": "w"
        },
        {
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          "name": "Pages with 3 entries",
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Obsolete form of fèces."
      ],
      "id": "en-fæces-fr-noun-PGBamzmN",
      "links": [
        [
          "fèces",
          "fèces#French"
        ]
      ],
      "raw_glosses": [
        "(archaic) Obsolete form of fèces."
      ],
      "tags": [
        "alt-of",
        "archaic",
        "feminine",
        "obsolete",
        "plural",
        "plural-only"
      ]
    }
  ],
  "word": "fæces"
}

{
  "head_templates": [
    {
      "args": {
        "1": "f-p"
      },
      "expansion": "fæces f pl (plural only)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "fèces"
        }
      ],
      "categories": [
        "French entries with incorrect language header",
        "French feminine nouns",
        "French lemmas",
        "French nouns",
        "French obsolete forms",
        "French pluralia tantum",
        "French terms spelled with Æ",
        "French terms with archaic senses",
        "Pages with 3 entries",
        "Pages with entries"
      ],
      "glosses": [
        "Obsolete form of fèces."
      ],
      "links": [
        [
          "fèces",
          "fèces#French"
        ]
      ],
      "raw_glosses": [
        "(archaic) Obsolete form of fèces."
      ],
      "tags": [
        "alt-of",
        "archaic",
        "feminine",
        "obsolete",
        "plural",
        "plural-only"
      ]
    }
  ],
  "word": "fæces"
}