"rück-" meaning in German

{
  "etymology_templates": [
    {
      "args": {
        "1": "de",
        "2": "gmh",
        "3": "rücke"
      },
      "expansion": "Middle High German rücke",
      "name": "inh"
    },
    {
      "args": {
        "1": "de",
        "2": "goh",
        "3": "rucki"
      },
      "expansion": "Old High German rucki",
      "name": "inh"
    },
    {
      "args": {
        "1": "de",
        "2": "gmw-pro",
        "3": "*hrugi"
      },
      "expansion": "Proto-West Germanic *hrugi",
      "name": "inh"
    },
    {
      "args": {
        "1": "de",
        "2": "gem-pro",
        "3": "*hrugjaz"
      },
      "expansion": "Proto-Germanic *hrugjaz",
      "name": "inh"
    }
  ],
  "etymology_text": "From Middle High German rücke, from Old High German rucki, from Proto-West Germanic *hrugi, from Proto-Germanic *hrugjaz.",
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "prefix"
      },
      "expansion": "rück-",
      "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": [
        "back"
      ],
      "id": "en-rück--de-prefix-PEgjRvN1",
      "links": [
        [
          "back",
          "back"
        ]
      ],
      "related": [
        {
          "word": "zurück-"
        },
        {
          "word": "Rücken"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʁʏk/"
    },
    {
      "audio": "De-rück-.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/7b/De-r%C3%BCck-.ogg/De-r%C3%BCck-.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/7/7b/De-r%C3%BCck-.ogg"
    }
  ],
  "word": "rück-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "de",
        "2": "gmh",
        "3": "rücke"
      },
      "expansion": "Middle High German rücke",
      "name": "inh"
    },
    {
      "args": {
        "1": "de",
        "2": "goh",
        "3": "rucki"
      },
      "expansion": "Old High German rucki",
      "name": "inh"
    },
    {
      "args": {
        "1": "de",
        "2": "gmw-pro",
        "3": "*hrugi"
      },
      "expansion": "Proto-West Germanic *hrugi",
      "name": "inh"
    },
    {
      "args": {
        "1": "de",
        "2": "gem-pro",
        "3": "*hrugjaz"
      },
      "expansion": "Proto-Germanic *hrugjaz",
      "name": "inh"
    }
  ],
  "etymology_text": "From Middle High German rücke, from Old High German rucki, from Proto-West Germanic *hrugi, from Proto-Germanic *hrugjaz.",
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "prefix"
      },
      "expansion": "rück-",
      "name": "head"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "prefix",
  "related": [
    {
      "word": "zurück-"
    },
    {
      "word": "Rücken"
    }
  ],
  "senses": [
    {
      "categories": [
        "German entries with incorrect language header",
        "German lemmas",
        "German prefixes",
        "German terms derived from Middle High German",
        "German terms derived from Old High German",
        "German terms derived from Proto-Germanic",
        "German terms derived from Proto-West Germanic",
        "German terms inherited from Middle High German",
        "German terms inherited from Old High German",
        "German terms inherited from Proto-Germanic",
        "German terms inherited from Proto-West Germanic",
        "Pages using catfix",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "back"
      ],
      "links": [
        [
          "back",
          "back"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʁʏk/"
    },
    {
      "audio": "De-rück-.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/7b/De-r%C3%BCck-.ogg/De-r%C3%BCck-.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/7/7b/De-r%C3%BCck-.ogg"
    }
  ],
  "word": "rück-"
}