"cû" meaning in Walloon

{
  "etymology_templates": [
    {
      "args": {
        "1": "wa",
        "2": "fro",
        "3": "cuit"
      },
      "expansion": "Old French cuit",
      "name": "inh"
    },
    {
      "args": {
        "1": "wa",
        "2": "la",
        "3": "coctus"
      },
      "expansion": "Latin coctus",
      "name": "inh"
    }
  ],
  "etymology_text": "From Old French cuit, from Latin coctus, perfect passive participle of coquō (“cook, ripen”).",
  "head_templates": [
    {
      "args": {
        "1": "wa",
        "2": "adjective"
      },
      "expansion": "cû",
      "name": "head"
    }
  ],
  "lang": "Walloon",
  "lang_code": "wa",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Walloon entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "cooked"
      ],
      "id": "en-cû-wa-adj-5urIKhif",
      "links": [
        [
          "cooked",
          "cooked"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kyː/"
    }
  ],
  "word": "cû"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "wa",
        "2": "fro",
        "3": "cuit"
      },
      "expansion": "Old French cuit",
      "name": "inh"
    },
    {
      "args": {
        "1": "wa",
        "2": "la",
        "3": "coctus"
      },
      "expansion": "Latin coctus",
      "name": "inh"
    }
  ],
  "etymology_text": "From Old French cuit, from Latin coctus, perfect passive participle of coquō (“cook, ripen”).",
  "head_templates": [
    {
      "args": {
        "1": "wa",
        "2": "adjective"
      },
      "expansion": "cû",
      "name": "head"
    }
  ],
  "lang": "Walloon",
  "lang_code": "wa",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Pages with 2 entries",
        "Pages with entries",
        "Walloon adjectives",
        "Walloon entries with incorrect language header",
        "Walloon lemmas",
        "Walloon terms derived from Latin",
        "Walloon terms derived from Old French",
        "Walloon terms inherited from Latin",
        "Walloon terms inherited from Old French"
      ],
      "glosses": [
        "cooked"
      ],
      "links": [
        [
          "cooked",
          "cooked"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kyː/"
    }
  ],
  "word": "cû"
}