"ud-" meaning in Proto-Celtic

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "sga",
            "2": "uss-",
            "qq": "merged with <i class=\"Latn mention\" lang=\"cel-pro\">*(o)uxs-</i>"
          },
          "expansion": "Old Irish: uss- (merged with *(o)uxs-)",
          "name": "desc"
        }
      ],
      "text": "Old Irish: uss- (merged with *(o)uxs-)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "cel-pro",
        "2": "ine-pro",
        "3": "*úd",
        "t": "out"
      },
      "expansion": "Proto-Indo-European *úd (“out”)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Proto-Indo-European *úd (“out”).",
  "head_templates": [
    {
      "args": {
        "1": "cel-pro",
        "2": "prefix"
      },
      "expansion": "*ud-",
      "name": "head"
    }
  ],
  "lang": "Proto-Celtic",
  "lang_code": "cel-pro",
  "original_title": "Reconstruction:Proto-Celtic/ud-",
  "pos": "prefix",
  "senses": [
    {
      "glosses": [
        "out-"
      ],
      "id": "en-ud--cel-pro-prefix-h5Ta2x7p",
      "links": [
        [
          "out-",
          "out-"
        ]
      ],
      "tags": [
        "morpheme",
        "reconstruction"
      ]
    },
    {
      "categories": [
        {
          "_dis": "0 0 0 0 0 100",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 0 0 0 0 100",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Proto-Celtic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "derived": [
        {
          "_dis1": "0 100",
          "sense": "Proto-Brythonic",
          "tags": [
            "Middle-Cornish"
          ],
          "word": "drehevel"
        },
        {
          "_dis1": "0 100",
          "sense": "Proto-Brythonic; Middle Welsh",
          "word": "dyrchafael"
        },
        {
          "_dis1": "0 100",
          "sense": "Old Irish: udnocht (“fence”), udnucht",
          "tags": [
            "Irish",
            "Middle"
          ],
          "word": "udnacht"
        },
        {
          "_dis1": "0 100",
          "sense": "Middle Welsh: dull (“manner”); Welsh",
          "word": "dull"
        }
      ],
      "glosses": [
        "Prefix creating telic verbs"
      ],
      "id": "en-ud--cel-pro-prefix-ZP-w6Jv~",
      "tags": [
        "morpheme",
        "reconstruction"
      ]
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "word": "uts-"
    }
  ],
  "word": "ud-"
}

{
  "categories": [
    "Pages with 1 entry",
    "Pages with entries",
    "Proto-Celtic entries with incorrect language header",
    "Proto-Celtic lemmas",
    "Proto-Celtic prefixes",
    "Proto-Celtic terms derived from Proto-Indo-European",
    "Proto-Celtic terms inherited from Proto-Indo-European"
  ],
  "derived": [
    {
      "sense": "Proto-Brythonic",
      "tags": [
        "Middle-Cornish"
      ],
      "word": "drehevel"
    },
    {
      "sense": "Proto-Brythonic; Middle Welsh",
      "word": "dyrchafael"
    },
    {
      "sense": "Old Irish: udnocht (“fence”), udnucht",
      "tags": [
        "Irish",
        "Middle"
      ],
      "word": "udnacht"
    },
    {
      "sense": "Middle Welsh: dull (“manner”); Welsh",
      "word": "dull"
    }
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "sga",
            "2": "uss-",
            "qq": "merged with <i class=\"Latn mention\" lang=\"cel-pro\">*(o)uxs-</i>"
          },
          "expansion": "Old Irish: uss- (merged with *(o)uxs-)",
          "name": "desc"
        }
      ],
      "text": "Old Irish: uss- (merged with *(o)uxs-)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "cel-pro",
        "2": "ine-pro",
        "3": "*úd",
        "t": "out"
      },
      "expansion": "Proto-Indo-European *úd (“out”)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Proto-Indo-European *úd (“out”).",
  "head_templates": [
    {
      "args": {
        "1": "cel-pro",
        "2": "prefix"
      },
      "expansion": "*ud-",
      "name": "head"
    }
  ],
  "lang": "Proto-Celtic",
  "lang_code": "cel-pro",
  "original_title": "Reconstruction:Proto-Celtic/ud-",
  "pos": "prefix",
  "senses": [
    {
      "glosses": [
        "out-"
      ],
      "links": [
        [
          "out-",
          "out-"
        ]
      ],
      "tags": [
        "morpheme",
        "reconstruction"
      ]
    },
    {
      "glosses": [
        "Prefix creating telic verbs"
      ],
      "tags": [
        "morpheme",
        "reconstruction"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "uts-"
    }
  ],
  "word": "ud-"
}