"दुः-" meaning in Sanskrit

{
  "forms": [
    {
      "form": "duḥ-",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sa",
        "2": "prefix"
      },
      "expansion": "दुः- • (duḥ-)",
      "name": "head"
    }
  ],
  "lang": "Sanskrit",
  "lang_code": "sa",
  "pos": "prefix",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "dus",
          "word": "दुस्"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sanskrit entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of दुस् (dus)"
      ],
      "id": "en-दुः--sa-prefix--FeoW0Fv",
      "links": [
        [
          "दुस्",
          "दुस्#Sanskrit"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/duh/",
      "tags": [
        "Vedic"
      ]
    },
    {
      "ipa": "/d̪uh/",
      "tags": [
        "Classical-Sanskrit"
      ]
    },
    {
      "ipa": "[d̪uhŭ]",
      "tags": [
        "Classical-Sanskrit"
      ]
    }
  ],
  "word": "दुः-"
}

{
  "forms": [
    {
      "form": "duḥ-",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sa",
        "2": "prefix"
      },
      "expansion": "दुः- • (duḥ-)",
      "name": "head"
    }
  ],
  "lang": "Sanskrit",
  "lang_code": "sa",
  "pos": "prefix",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "dus",
          "word": "दुस्"
        }
      ],
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Sanskrit entries with incorrect language header",
        "Sanskrit lemmas",
        "Sanskrit prefixes",
        "Sanskrit terms with IPA pronunciation"
      ],
      "glosses": [
        "Alternative form of दुस् (dus)"
      ],
      "links": [
        [
          "दुस्",
          "दुस्#Sanskrit"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/duh/",
      "tags": [
        "Vedic"
      ]
    },
    {
      "ipa": "/d̪uh/",
      "tags": [
        "Classical-Sanskrit"
      ]
    },
    {
      "ipa": "[d̪uhŭ]",
      "tags": [
        "Classical-Sanskrit"
      ]
    }
  ],
  "word": "दुः-"
}