"brawd du" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "black brother"
      },
      "expansion": "“black brother”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "black brother"
      },
      "expansion": "Literally, “black brother”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “black brother”.",
  "forms": [
    {
      "form": "brodyr du",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "brodyr du"
      },
      "expansion": "brawd du m (plural brodyr du)",
      "name": "cy-noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "cy",
          "name": "Male people",
          "orig": "cy:Male people",
          "parents": [
            "Male",
            "People",
            "Gender",
            "Human",
            "Biology",
            "Psychology",
            "Sociology",
            "All topics",
            "Sciences",
            "Social sciences",
            "Fundamental",
            "Society"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "cy",
          "name": "Monasticism",
          "orig": "cy:Monasticism",
          "parents": [
            "Religion",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "cy",
          "name": "Roman Catholicism",
          "orig": "cy:Roman Catholicism",
          "parents": [
            "Catholicism",
            "Christianity",
            "Abrahamism",
            "Religion",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "black friar, Dominican"
      ],
      "id": "en-brawd_du-cy-noun-l7xwsT-R",
      "links": [
        [
          "black friar",
          "black friar"
        ],
        [
          "Dominican",
          "Dominican"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "brawd du"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "black brother"
      },
      "expansion": "“black brother”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "black brother"
      },
      "expansion": "Literally, “black brother”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “black brother”.",
  "forms": [
    {
      "form": "brodyr du",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "brodyr du"
      },
      "expansion": "brawd du m (plural brodyr du)",
      "name": "cy-noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Welsh countable nouns",
        "Welsh entries with incorrect language header",
        "Welsh lemmas",
        "Welsh masculine nouns",
        "Welsh multiword terms",
        "Welsh nouns",
        "Welsh nouns with red links in their headword lines",
        "cy:Male people",
        "cy:Monasticism",
        "cy:Roman Catholicism"
      ],
      "glosses": [
        "black friar, Dominican"
      ],
      "links": [
        [
          "black friar",
          "black friar"
        ],
        [
          "Dominican",
          "Dominican"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "brawd du"
}