"menstrues" meaning in Old French

{
  "head_templates": [
    {
      "args": {
        "1": "fro",
        "2": "noun",
        "g": "f-p"
      },
      "expansion": "menstrues f pl",
      "name": "head"
    }
  ],
  "lang": "Old French",
  "lang_code": "fro",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old French entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old French pluralia tantum",
          "parents": [
            "Pluralia tantum",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fro",
          "name": "Anatomy",
          "orig": "fro:Anatomy",
          "parents": [
            "Biology",
            "Medicine",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "Menses flow naturally from the 13th year",
          "ref": "1377, Bernard de Gordon, Fleur de lis de medecine (a.k.a. lilium medicine)",
          "text": "Menstrus fluent naturellement depuis le XIII an",
          "type": "quotation"
        }
      ],
      "glosses": [
        "menses"
      ],
      "id": "en-menstrues-fro-noun-oTBBK0N0",
      "links": [
        [
          "menses",
          "menses"
        ]
      ],
      "synonyms": [
        {
          "word": "menstrus"
        }
      ],
      "tags": [
        "feminine",
        "plural"
      ]
    }
  ],
  "word": "menstrues"
}

{
  "head_templates": [
    {
      "args": {
        "1": "fro",
        "2": "noun",
        "g": "f-p"
      },
      "expansion": "menstrues f pl",
      "name": "head"
    }
  ],
  "lang": "Old French",
  "lang_code": "fro",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Old French entries with incorrect language header",
        "Old French entries with topic categories using raw markup",
        "Old French feminine nouns",
        "Old French lemmas",
        "Old French nouns",
        "Old French pluralia tantum",
        "Old French terms with quotations",
        "fro:Anatomy"
      ],
      "examples": [
        {
          "english": "Menses flow naturally from the 13th year",
          "ref": "1377, Bernard de Gordon, Fleur de lis de medecine (a.k.a. lilium medicine)",
          "text": "Menstrus fluent naturellement depuis le XIII an",
          "type": "quotation"
        }
      ],
      "glosses": [
        "menses"
      ],
      "links": [
        [
          "menses",
          "menses"
        ]
      ],
      "tags": [
        "feminine",
        "plural"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "menstrus"
    }
  ],
  "word": "menstrues"
}