"Holy Thursday" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "Holy Thursday"
      },
      "expansion": "Middle English Holy Thursday",
      "name": "inh"
    },
    {
      "args": {
        "1": "en",
        "2": "holy",
        "3": "Thursday"
      },
      "expansion": "holy + Thursday",
      "name": "af"
    }
  ],
  "etymology_text": "From Middle English Holy Thursday, holy Thurysday, hooly þursday, haly þorsday, Hallʒhe Þurrsdaʒʒ, equivalent to holy + Thursday.",
  "head_templates": [
    {
      "args": {
        "head": "Holy Thursday"
      },
      "expansion": "Holy Thursday",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Christianity",
          "orig": "en:Christianity",
          "parents": [
            "Abrahamism",
            "Religion",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "81 19",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "75 25",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "84 16",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "81 19",
          "kind": "topical",
          "langcode": "en",
          "name": "Easter",
          "orig": "en:Easter",
          "parents": [
            "Christianity",
            "Holidays",
            "Abrahamism",
            "Observances",
            "Religion",
            "Calendar",
            "Culture",
            "Timekeeping",
            "Society",
            "Time",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "72 28",
          "kind": "topical",
          "langcode": "en",
          "name": "Holidays",
          "orig": "en:Holidays",
          "parents": [
            "Observances",
            "Calendar",
            "Timekeeping",
            "Time",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Maundy Thursday, the Thursday before Easter"
      ],
      "id": "en-Holy_Thursday-en-name-O0J3TCxw",
      "links": [
        [
          "Christianity",
          "Christianity"
        ],
        [
          "Maundy Thursday",
          "Maundy Thursday"
        ],
        [
          "Easter",
          "Easter"
        ]
      ],
      "raw_glosses": [
        "(Christianity) Maundy Thursday, the Thursday before Easter"
      ],
      "topics": [
        "Christianity"
      ]
    },
    {
      "categories": [],
      "glosses": [
        "Ascension Day"
      ],
      "id": "en-Holy_Thursday-en-name-1zAwU1OR",
      "links": [
        [
          "Ascension Day",
          "Ascension Day"
        ]
      ],
      "raw_glosses": [
        "(now rare) Ascension Day"
      ],
      "tags": [
        "archaic"
      ]
    }
  ],
  "word": "Holy Thursday"
}

{
  "categories": [
    "English compound terms",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English proper nouns",
    "English terms derived from Middle English",
    "English terms inherited from Middle English",
    "English uncountable nouns",
    "Pages with 1 entry",
    "Pages with entries",
    "en:Easter",
    "en:Holidays"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "Holy Thursday"
      },
      "expansion": "Middle English Holy Thursday",
      "name": "inh"
    },
    {
      "args": {
        "1": "en",
        "2": "holy",
        "3": "Thursday"
      },
      "expansion": "holy + Thursday",
      "name": "af"
    }
  ],
  "etymology_text": "From Middle English Holy Thursday, holy Thurysday, hooly þursday, haly þorsday, Hallʒhe Þurrsdaʒʒ, equivalent to holy + Thursday.",
  "head_templates": [
    {
      "args": {
        "head": "Holy Thursday"
      },
      "expansion": "Holy Thursday",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "en:Christianity"
      ],
      "glosses": [
        "Maundy Thursday, the Thursday before Easter"
      ],
      "links": [
        [
          "Christianity",
          "Christianity"
        ],
        [
          "Maundy Thursday",
          "Maundy Thursday"
        ],
        [
          "Easter",
          "Easter"
        ]
      ],
      "raw_glosses": [
        "(Christianity) Maundy Thursday, the Thursday before Easter"
      ],
      "topics": [
        "Christianity"
      ]
    },
    {
      "categories": [
        "English terms with rare senses"
      ],
      "glosses": [
        "Ascension Day"
      ],
      "links": [
        [
          "Ascension Day",
          "Ascension Day"
        ]
      ],
      "raw_glosses": [
        "(now rare) Ascension Day"
      ],
      "tags": [
        "archaic"
      ]
    }
  ],
  "word": "Holy Thursday"
}