"bruwo-" meaning in Proto-Celtic

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "sga",
            "2": "bróu"
          },
          "expansion": "Old Irish: bróu",
          "name": "desc"
        }
      ],
      "text": "Old Irish: bróu"
    },
    {
      "depth": 2,
      "templates": [
        {
          "args": {
            "1": "mga",
            "2": "bró",
            "t": "multitude"
          },
          "expansion": "Middle Irish: bró (“multitude”)",
          "name": "desc"
        }
      ],
      "text": "Middle Irish: bró (“multitude”)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "cel-pro"
      },
      "expansion": "Unknown",
      "name": "unk"
    }
  ],
  "etymology_text": "Unknown; any etymology provided for either of the Welsh or Irish forms inevitably features an uncomfortable semantic distance and also make connecting the Welsh and Irish forms together phonologically impossible.",
  "forms": [
    {
      "form": "bruwo- gender unattested",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cel-pro",
        "2": "noun",
        "cat2": "",
        "g": "g!",
        "g2": "",
        "g3": "",
        "head": ""
      },
      "expansion": "*bruwo- gender unattested",
      "name": "head"
    }
  ],
  "lang": "Proto-Celtic",
  "lang_code": "cel-pro",
  "original_title": "Reconstruction:Proto-Celtic/bruwo-",
  "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": "Proto-Celtic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "english": "strong, mighty",
          "sense": "Middle Welsh: bryu; Welsh",
          "word": "bryw"
        }
      ],
      "glosses": [
        "mass, multitude"
      ],
      "id": "en-bruwo--cel-pro-noun--WGNHb1v",
      "links": [
        [
          "mass",
          "mass"
        ],
        [
          "multitude",
          "multitude"
        ]
      ],
      "tags": [
        "reconstruction"
      ],
      "wikipedia": [
        "Brill Publishers"
      ]
    }
  ],
  "word": "bruwo-"
}

{
  "derived": [
    {
      "english": "strong, mighty",
      "sense": "Middle Welsh: bryu; Welsh",
      "word": "bryw"
    }
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "sga",
            "2": "bróu"
          },
          "expansion": "Old Irish: bróu",
          "name": "desc"
        }
      ],
      "text": "Old Irish: bróu"
    },
    {
      "depth": 2,
      "templates": [
        {
          "args": {
            "1": "mga",
            "2": "bró",
            "t": "multitude"
          },
          "expansion": "Middle Irish: bró (“multitude”)",
          "name": "desc"
        }
      ],
      "text": "Middle Irish: bró (“multitude”)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "cel-pro"
      },
      "expansion": "Unknown",
      "name": "unk"
    }
  ],
  "etymology_text": "Unknown; any etymology provided for either of the Welsh or Irish forms inevitably features an uncomfortable semantic distance and also make connecting the Welsh and Irish forms together phonologically impossible.",
  "forms": [
    {
      "form": "bruwo- gender unattested",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "cel-pro",
        "2": "noun",
        "cat2": "",
        "g": "g!",
        "g2": "",
        "g3": "",
        "head": ""
      },
      "expansion": "*bruwo- gender unattested",
      "name": "head"
    }
  ],
  "lang": "Proto-Celtic",
  "lang_code": "cel-pro",
  "original_title": "Reconstruction:Proto-Celtic/bruwo-",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Proto-Celtic entries with incorrect language header",
        "Proto-Celtic lemmas",
        "Proto-Celtic nouns",
        "Proto-Celtic terms with unknown etymologies"
      ],
      "glosses": [
        "mass, multitude"
      ],
      "links": [
        [
          "mass",
          "mass"
        ],
        [
          "multitude",
          "multitude"
        ]
      ],
      "tags": [
        "reconstruction"
      ],
      "wikipedia": [
        "Brill Publishers"
      ]
    }
  ],
  "word": "bruwo-"
}