"riesen-" meaning in German

{
  "etymology_templates": [
    {
      "args": {
        "1": "nl",
        "2": "reuze-"
      },
      "expansion": "Dutch reuze-",
      "name": "cog"
    },
    {
      "args": {
        "1": "sv",
        "2": "jätte-"
      },
      "expansion": "Swedish jätte-",
      "name": "noncog"
    }
  ],
  "etymology_text": "From Riese (“giant”). Compare the cognate Dutch reuze-, and Swedish jätte- which is formed similarly.",
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "prefix"
      },
      "expansion": "riesen-",
      "name": "head"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "German entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "giant"
      ],
      "id": "en-riesen--de-prefix-CxMuovbN",
      "links": [
        [
          "giant",
          "giant"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈʁiːzn̩/"
    }
  ],
  "word": "riesen-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "nl",
        "2": "reuze-"
      },
      "expansion": "Dutch reuze-",
      "name": "cog"
    },
    {
      "args": {
        "1": "sv",
        "2": "jätte-"
      },
      "expansion": "Swedish jätte-",
      "name": "noncog"
    }
  ],
  "etymology_text": "From Riese (“giant”). Compare the cognate Dutch reuze-, and Swedish jätte- which is formed similarly.",
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "prefix"
      },
      "expansion": "riesen-",
      "name": "head"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "German entries with incorrect language header",
        "German lemmas",
        "German prefixes",
        "Pages using catfix",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "giant"
      ],
      "links": [
        [
          "giant",
          "giant"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈʁiːzn̩/"
    }
  ],
  "word": "riesen-"
}