"z-" meaning in Czech

{
  "derived": [
    {
      "_dis1": "0 0",
      "word": "zbabělec"
    },
    {
      "_dis1": "0 0",
      "word": "zčernat"
    },
    {
      "_dis1": "0 0",
      "word": "zčervenat"
    },
    {
      "_dis1": "0 0",
      "word": "zefektivnit"
    },
    {
      "_dis1": "0 0",
      "word": "zhoršit"
    },
    {
      "_dis1": "0 0",
      "word": "zchladnout"
    },
    {
      "_dis1": "0 0",
      "word": "zkazit"
    },
    {
      "_dis1": "0 0",
      "word": "zklamat"
    },
    {
      "_dis1": "0 0",
      "word": "zkomolit"
    },
    {
      "_dis1": "0 0",
      "word": "zkrotit"
    },
    {
      "_dis1": "0 0",
      "word": "zlákat"
    },
    {
      "_dis1": "0 0",
      "word": "zlehčit"
    },
    {
      "_dis1": "0 0",
      "word": "zlepšit"
    },
    {
      "_dis1": "0 0",
      "word": "zmást"
    },
    {
      "_dis1": "0 0",
      "word": "zmenšit"
    },
    {
      "_dis1": "0 0",
      "word": "zmodrat"
    },
    {
      "_dis1": "0 0",
      "word": "zteplat"
    },
    {
      "_dis1": "0 0",
      "word": "ztěžknout"
    },
    {
      "_dis1": "0 0",
      "word": "ztuha"
    },
    {
      "_dis1": "0 0",
      "word": "ztuhnout"
    },
    {
      "_dis1": "0 0",
      "word": "zúročit"
    },
    {
      "_dis1": "0 0",
      "word": "zvětšit"
    }
  ],
  "etymology_text": "z used as a prefix.",
  "head_templates": [
    {
      "args": {
        "1": "cs",
        "2": "prefix"
      },
      "expansion": "z-",
      "name": "head"
    }
  ],
  "lang": "Czech",
  "lang_code": "cs",
  "pos": "prefix",
  "related": [
    {
      "_dis1": "0 0",
      "word": "ze-"
    }
  ],
  "senses": [
    {
      "glosses": [
        "a prefix, to form perfective verbs"
      ],
      "id": "en-z--cs-prefix-PjO1N9eN",
      "tags": [
        "morpheme"
      ]
    },
    {
      "categories": [
        {
          "_dis": "3 97",
          "kind": "other",
          "name": "Czech entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "3 44 5 10 2 7 0 3 0 2 7 0 9 0 2 2 2 2",
          "kind": "other",
          "name": "Pages with 10 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "2 51 3 10 1 7 0 2 0 1 7 0 10 0 1 1 1 1",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "a prefix, indicating a change of state"
      ],
      "id": "en-z--cs-prefix-pkol1fXu",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "z-"
}

{
  "categories": [
    "Czech entries with incorrect language header",
    "Czech lemmas",
    "Czech prefixes",
    "Pages with 10 entries",
    "Pages with entries"
  ],
  "derived": [
    {
      "word": "zbabělec"
    },
    {
      "word": "zčernat"
    },
    {
      "word": "zčervenat"
    },
    {
      "word": "zefektivnit"
    },
    {
      "word": "zhoršit"
    },
    {
      "word": "zchladnout"
    },
    {
      "word": "zkazit"
    },
    {
      "word": "zklamat"
    },
    {
      "word": "zkomolit"
    },
    {
      "word": "zkrotit"
    },
    {
      "word": "zlákat"
    },
    {
      "word": "zlehčit"
    },
    {
      "word": "zlepšit"
    },
    {
      "word": "zmást"
    },
    {
      "word": "zmenšit"
    },
    {
      "word": "zmodrat"
    },
    {
      "word": "zteplat"
    },
    {
      "word": "ztěžknout"
    },
    {
      "word": "ztuha"
    },
    {
      "word": "ztuhnout"
    },
    {
      "word": "zúročit"
    },
    {
      "word": "zvětšit"
    }
  ],
  "etymology_text": "z used as a prefix.",
  "head_templates": [
    {
      "args": {
        "1": "cs",
        "2": "prefix"
      },
      "expansion": "z-",
      "name": "head"
    }
  ],
  "lang": "Czech",
  "lang_code": "cs",
  "pos": "prefix",
  "related": [
    {
      "word": "ze-"
    }
  ],
  "senses": [
    {
      "glosses": [
        "a prefix, to form perfective verbs"
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "glosses": [
        "a prefix, indicating a change of state"
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "z-"
}