"des-" meaning in English

{
  "categories": [],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "des-"
      },
      "expansion": "Middle English des-",
      "name": "inh"
    },
    {
      "args": {
        "1": "enm",
        "2": "dis-"
      },
      "expansion": "dis-",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "fro",
        "3": "des-"
      },
      "expansion": "Old French des-",
      "name": "der"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "dis-"
      },
      "expansion": "Latin dis-",
      "name": "der"
    }
  ],
  "etymology_text": "From Middle English des-, dis-, from Old French des-, from Latin dis-.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "des-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "des-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "reversal of sense of succeeding word",
          "word": "dis-"
        }
      ],
      "categories": [],
      "glosses": [
        "Obsolete form of dis-. (reversal of sense of succeeding word)"
      ],
      "id": "en-des--en-prefix-TKTkKByX",
      "links": [
        [
          "dis-",
          "dis-#English"
        ],
        [
          "reversal",
          "reversal"
        ],
        [
          "sense",
          "sense"
        ],
        [
          "succeeding",
          "succeeding"
        ],
        [
          "word",
          "word"
        ]
      ],
      "tags": [
        "alt-of",
        "morpheme",
        "obsolete"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Organic chemistry",
          "orig": "en:Organic chemistry",
          "parents": [
            "Chemistry",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "removal of a group from a molecule"
      ],
      "id": "en-des--en-prefix-UCRSzFct",
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "removal",
          "removal"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) removal of a group from a molecule"
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "word": "des-"
}

{
  "categories": [
    "English lemmas",
    "English prefixes",
    "English terms derived from Latin",
    "English terms derived from Middle English",
    "English terms derived from Old French",
    "English terms inherited from Middle English"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "des-"
      },
      "expansion": "Middle English des-",
      "name": "inh"
    },
    {
      "args": {
        "1": "enm",
        "2": "dis-"
      },
      "expansion": "dis-",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "fro",
        "3": "des-"
      },
      "expansion": "Old French des-",
      "name": "der"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "dis-"
      },
      "expansion": "Latin dis-",
      "name": "der"
    }
  ],
  "etymology_text": "From Middle English des-, dis-, from Old French des-, from Latin dis-.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "des-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "des-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "reversal of sense of succeeding word",
          "word": "dis-"
        }
      ],
      "categories": [
        "English obsolete forms"
      ],
      "glosses": [
        "Obsolete form of dis-. (reversal of sense of succeeding word)"
      ],
      "links": [
        [
          "dis-",
          "dis-#English"
        ],
        [
          "reversal",
          "reversal"
        ],
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          "sense",
          "sense"
        ],
        [
          "succeeding",
          "succeeding"
        ],
        [
          "word",
          "word"
        ]
      ],
      "tags": [
        "alt-of",
        "morpheme",
        "obsolete"
      ]
    },
    {
      "categories": [
        "en:Organic chemistry"
      ],
      "glosses": [
        "removal of a group from a molecule"
      ],
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "removal",
          "removal"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) removal of a group from a molecule"
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "word": "des-"
}