"pentecoster" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "πεντηκοστήρ"
      },
      "expansion": "Learned borrowing from Ancient Greek πεντηκοστήρ (pentēkostḗr)",
      "name": "lbor"
    }
  ],
  "etymology_text": "Learned borrowing from Ancient Greek πεντηκοστήρ (pentēkostḗr), from πεντηκοστύς (pentēkostús, “pentekostys”), from πεντηκοστός (pentēkostós, “fiftieth”).",
  "forms": [
    {
      "form": "pentecosters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pentecoster (plural pentecosters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
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          "name": "Pages with 1 entry",
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          "source": "w"
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        {
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        },
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          "kind": "other",
          "langcode": "en",
          "name": "Ancient Greece",
          "orig": "en:Ancient Greece",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Fifty",
          "orig": "en:Fifty",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Military ranks",
          "orig": "en:Military ranks",
          "parents": [],
          "source": "w"
        },
        {
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          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              38,
              49
            ]
          ],
          "ref": "1784-1810, William Mitford, The History of Greece:",
          "text": "...they would have the command of the pentecoster, penteconter, or pentecoptater (for thus variously the title is written)...",
          "type": "quote"
        }
      ],
      "glosses": [
        "An officer who commands fifty men, particularly (historical) in the Spartan army."
      ],
      "id": "en-pentecoster-en-noun-WWhSSSgA",
      "links": [
        [
          "officer",
          "officer"
        ],
        [
          "command",
          "command"
        ],
        [
          "fifty",
          "fifty"
        ],
        [
          "men",
          "men"
        ],
        [
          "particularly",
          "particularly"
        ],
        [
          "Spartan",
          "Spartan"
        ],
        [
          "army",
          "army"
        ]
      ],
      "related": [
        {
          "word": "penteconter"
        },
        {
          "word": "Pentecost"
        }
      ],
      "synonyms": [
        {
          "word": "quinquagenarian"
        },
        {
          "tags": [
            "obsolete"
          ],
          "word": "quinquagenary"
        }
      ]
    }
  ],
  "word": "pentecoster"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "πεντηκοστήρ"
      },
      "expansion": "Learned borrowing from Ancient Greek πεντηκοστήρ (pentēkostḗr)",
      "name": "lbor"
    }
  ],
  "etymology_text": "Learned borrowing from Ancient Greek πεντηκοστήρ (pentēkostḗr), from πεντηκοστύς (pentēkostús, “pentekostys”), from πεντηκοστός (pentēkostós, “fiftieth”).",
  "forms": [
    {
      "form": "pentecosters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pentecoster (plural pentecosters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "penteconter"
    },
    {
      "word": "Pentecost"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
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        "English terms borrowed from Ancient Greek",
        "English terms derived from Ancient Greek",
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          "bold_text_offsets": [
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              38,
              49
            ]
          ],
          "ref": "1784-1810, William Mitford, The History of Greece:",
          "text": "...they would have the command of the pentecoster, penteconter, or pentecoptater (for thus variously the title is written)...",
          "type": "quote"
        }
      ],
      "glosses": [
        "An officer who commands fifty men, particularly (historical) in the Spartan army."
      ],
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          "officer",
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          "command",
          "command"
        ],
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          "fifty",
          "fifty"
        ],
        [
          "men",
          "men"
        ],
        [
          "particularly",
          "particularly"
        ],
        [
          "Spartan",
          "Spartan"
        ],
        [
          "army",
          "army"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "quinquagenarian"
    },
    {
      "tags": [
        "obsolete"
      ],
      "word": "quinquagenary"
    }
  ],
  "word": "pentecoster"
}