"Rou" meaning in Norman

{
  "etymology_templates": [
    {
      "args": {
        "1": "nrf",
        "2": "non",
        "3": "Hrólfr"
      },
      "expansion": "Old Norse Hrólfr",
      "name": "bor"
    }
  ],
  "etymology_text": "Also Rouf. From Old Norse Hrólfr.",
  "head_templates": [
    {
      "args": {
        "1": "nrf",
        "2": "proper noun",
        "g": "m"
      },
      "expansion": "Rou m",
      "name": "head"
    }
  ],
  "lang": "Norman",
  "lang_code": "nrm",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Norman entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "Norman given names",
          "parents": [
            "Given names",
            "Names",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "Norman male given names",
          "parents": [
            "Male given names",
            "Given names",
            "Names",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "a male given name"
      ],
      "id": "en-Rou-nrm-name-h8YdwBAs",
      "links": [
        [
          "given name",
          "given name"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "Rou"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "nrf",
        "2": "non",
        "3": "Hrólfr"
      },
      "expansion": "Old Norse Hrólfr",
      "name": "bor"
    }
  ],
  "etymology_text": "Also Rouf. From Old Norse Hrólfr.",
  "head_templates": [
    {
      "args": {
        "1": "nrf",
        "2": "proper noun",
        "g": "m"
      },
      "expansion": "Rou m",
      "name": "head"
    }
  ],
  "lang": "Norman",
  "lang_code": "nrm",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Norman entries with incorrect language header",
        "Norman given names",
        "Norman lemmas",
        "Norman male given names",
        "Norman masculine nouns",
        "Norman proper nouns",
        "Norman terms borrowed from Old Norse",
        "Norman terms derived from Old Norse",
        "Pages with 2 entries",
        "Pages with entries"
      ],
      "glosses": [
        "a male given name"
      ],
      "links": [
        [
          "given name",
          "given name"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "Rou"
}