"Childermasse day" meaning in Middle English

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "en",
            "2": "Childermas"
          },
          "expansion": "English: Childermas",
          "name": "desc"
        }
      ],
      "text": "English: Childermas (day)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "enm",
        "2": "childre",
        "3": "messe",
        "4": "day"
      },
      "expansion": "childre + messe + day",
      "name": "af"
    }
  ],
  "etymology_text": "From childre + messe + day.",
  "head_templates": [
    {
      "args": {
        "1": "enm",
        "2": "proper noun",
        "head": "Childermasse day"
      },
      "expansion": "Childermasse day",
      "name": "head"
    }
  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Middle English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "enm",
          "name": "Christianity",
          "orig": "enm:Christianity",
          "parents": [
            "Abrahamism",
            "Religion",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "enm",
          "name": "Holidays",
          "orig": "enm:Holidays",
          "parents": [
            "Observances",
            "Calendar",
            "Timekeeping",
            "Time",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Childermas"
      ],
      "id": "en-Childermasse_day-enm-name-U8pNCZIC",
      "links": [
        [
          "Childermas",
          "Childermas"
        ]
      ],
      "synonyms": [
        {
          "word": "Chyldermesse Day"
        },
        {
          "word": "Chyldermasse day"
        },
        {
          "word": "Chyldyrmas-day"
        },
        {
          "word": "children masse day"
        },
        {
          "word": "childer masse day"
        },
        {
          "word": "Childerne masse dai"
        },
        {
          "word": "childre masse dai"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈt͡ʃildərmas(ə)dæi̯̯/"
    },
    {
      "ipa": "/ˈt͡ʃildərmɛs(ə)dæi̯̯/"
    }
  ],
  "word": "Childermasse day"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "en",
            "2": "Childermas"
          },
          "expansion": "English: Childermas",
          "name": "desc"
        }
      ],
      "text": "English: Childermas (day)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "enm",
        "2": "childre",
        "3": "messe",
        "4": "day"
      },
      "expansion": "childre + messe + day",
      "name": "af"
    }
  ],
  "etymology_text": "From childre + messe + day.",
  "head_templates": [
    {
      "args": {
        "1": "enm",
        "2": "proper noun",
        "head": "Childermasse day"
      },
      "expansion": "Childermasse day",
      "name": "head"
    }
  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Middle English compound terms",
        "Middle English entries with incorrect language header",
        "Middle English lemmas",
        "Middle English multiword terms",
        "Middle English proper nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "enm:Christianity",
        "enm:Holidays"
      ],
      "glosses": [
        "Childermas"
      ],
      "links": [
        [
          "Childermas",
          "Childermas"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈt͡ʃildərmas(ə)dæi̯̯/"
    },
    {
      "ipa": "/ˈt͡ʃildərmɛs(ə)dæi̯̯/"
    }
  ],
  "synonyms": [
    {
      "word": "Chyldermesse Day"
    },
    {
      "word": "Chyldermasse day"
    },
    {
      "word": "Chyldyrmas-day"
    },
    {
      "word": "children masse day"
    },
    {
      "word": "childer masse day"
    },
    {
      "word": "Childerne masse dai"
    },
    {
      "word": "childre masse dai"
    }
  ],
  "word": "Childermasse day"
}