"do-" meaning in English

{
  "etymology_links": [
    [
      "δώδεκᾰ",
      "δώδεκα#Ancient_Greek"
    ],
    [
      "dodeca-",
      "dodeca-#English"
    ],
    [
      "dodeca-",
      "dodeca-#English"
    ],
    [
      "δώδεκα",
      "δώδεκα#Ancient_Greek"
    ]
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": ":clipping",
        "3": "dodeca-",
        "tree": "1"
      },
      "expansion": "Etymology tree\nAncient Greek δώδεκᾰ (dṓdekă)bor.\nEnglish dodeca-clip.\nEnglish do-\n[Appendix:Glossary#clipping|Clipping]] of\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"bor.\", \"keyword_label\" : \"Borrowed from\", \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"δώδεκᾰ\", \"status\" : \"missing\", \"lang\" : \"grc\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"English\", \"term\" : \"dodeca-\", \"status\" : \"ok\", \"lang\" : \"en\" } ], \"keyword\" : \"clipping\" } ], \"lang_name\" : \"English\", \"term\" : \"do-\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"do-\">",
      "name": "ety"
    },
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "δώδεκα",
        "4": "",
        "5": "twelve"
      },
      "expansion": "Ancient Greek δώδεκα (dṓdeka, “twelve”)",
      "name": "der"
    }
  ],
  "etymology_text": "Etymology tree\nAncient Greek δώδεκᾰ (dṓdekă)bor.\nEnglish dodeca-clip.\nEnglish do-\nFrom dodeca-, from Ancient Greek δώδεκα (dṓdeka, “twelve”).",
  "head_templates": [
    {
      "args": {},
      "expansion": "do-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "alt_of": [
        {
          "word": "duo-"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with etymon",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using etymon with no ID",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 15 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with etymon",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of duo-"
      ],
      "id": "en-do--en-prefix-rgCQc1sU",
      "links": [
        [
          "duo-",
          "duo-#English"
        ]
      ],
      "raw_glosses": [
        "(chiefly IUPAC) Alternative form of duo-"
      ],
      "tags": [
        "IUPAC",
        "alt-of",
        "alternative",
        "morpheme"
      ]
    }
  ],
  "word": "do-"
}

{
  "categories": [
    "Pages using catfix",
    "Pages with 15 entries",
    "Pages with entries"
  ],
  "etymology_links": [
    [
      "δώδεκᾰ",
      "δώδεκα#Ancient_Greek"
    ],
    [
      "dodeca-",
      "dodeca-#English"
    ],
    [
      "dodeca-",
      "dodeca-#English"
    ],
    [
      "δώδεκα",
      "δώδεκα#Ancient_Greek"
    ]
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": ":clipping",
        "3": "dodeca-",
        "tree": "1"
      },
      "expansion": "Etymology tree\nAncient Greek δώδεκᾰ (dṓdekă)bor.\nEnglish dodeca-clip.\nEnglish do-\n[Appendix:Glossary#clipping|Clipping]] of\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"bor.\", \"keyword_label\" : \"Borrowed from\", \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Ancient Greek\", \"term\" : \"δώδεκᾰ\", \"status\" : \"missing\", \"lang\" : \"grc\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"English\", \"term\" : \"dodeca-\", \"status\" : \"ok\", \"lang\" : \"en\" } ], \"keyword\" : \"clipping\" } ], \"lang_name\" : \"English\", \"term\" : \"do-\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"do-\">",
      "name": "ety"
    },
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "δώδεκα",
        "4": "",
        "5": "twelve"
      },
      "expansion": "Ancient Greek δώδεκα (dṓdeka, “twelve”)",
      "name": "der"
    }
  ],
  "etymology_text": "Etymology tree\nAncient Greek δώδεκᾰ (dṓdekă)bor.\nEnglish dodeca-clip.\nEnglish do-\nFrom dodeca-, from Ancient Greek δώδεκα (dṓdeka, “twelve”).",
  "head_templates": [
    {
      "args": {},
      "expansion": "do-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "alt_of": [
        {
          "word": "duo-"
        }
      ],
      "categories": [
        "English clippings",
        "English entries with etymology trees",
        "English entries with etymon",
        "English entries with incorrect language header",
        "English lemmas",
        "English prefixes",
        "English terms derived from Ancient Greek",
        "English terms derived from Proto-Indo-European",
        "Pages using catfix",
        "Pages using etymon with no ID",
        "Pages with 15 entries",
        "Pages with entries",
        "Pages with etymology trees",
        "Pages with etymon"
      ],
      "glosses": [
        "Alternative form of duo-"
      ],
      "links": [
        [
          "duo-",
          "duo-#English"
        ]
      ],
      "raw_glosses": [
        "(chiefly IUPAC) Alternative form of duo-"
      ],
      "tags": [
        "IUPAC",
        "alt-of",
        "alternative",
        "morpheme"
      ]
    }
  ],
  "word": "do-"
}