"root word" meaning in English

{
  "forms": [
    {
      "form": "root words",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "root word (plural root words)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "64 36",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w+disamb"
        },
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          "_dis": "79 21",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
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          "source": "w+disamb"
        },
        {
          "_dis": "82 18",
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
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          "source": "w+disamb"
        },
        {
          "_dis": "49 51",
          "kind": "topical",
          "langcode": "en",
          "name": "Grammar",
          "orig": "en:Grammar",
          "parents": [
            "Linguistics",
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A prefix in an English word derived from Greek or Latin."
      ],
      "id": "en-root_word-en-noun-i2vOCb5J"
    },
    {
      "alt_of": [
        {
          "extra": "the primary lexical unit of a word, which carries the most significant aspects of semantic content and cannot be reduced into smaller constituents. Inflectional stems often derive from roots.",
          "word": "root"
        }
      ],
      "categories": [
        {
          "_dis": "49 51",
          "kind": "topical",
          "langcode": "en",
          "name": "Grammar",
          "orig": "en:Grammar",
          "parents": [
            "Linguistics",
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Alternative form of root: the primary lexical unit of a word, which carries the most significant aspects of semantic content and cannot be reduced into smaller constituents. Inflectional stems often derive from roots."
      ],
      "id": "en-root_word-en-noun-qwi47gtr",
      "links": [
        [
          "root",
          "root#English"
        ],
        [
          "Inflectional stems",
          "stem"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "wikipedia": [
    "Greek and Latin roots in English"
  ],
  "word": "root word"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms with non-redundant non-automated sortkeys",
    "en:Grammar"
  ],
  "forms": [
    {
      "form": "root words",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "root word (plural root words)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A prefix in an English word derived from Greek or Latin."
      ]
    },
    {
      "alt_of": [
        {
          "extra": "the primary lexical unit of a word, which carries the most significant aspects of semantic content and cannot be reduced into smaller constituents. Inflectional stems often derive from roots.",
          "word": "root"
        }
      ],
      "glosses": [
        "Alternative form of root: the primary lexical unit of a word, which carries the most significant aspects of semantic content and cannot be reduced into smaller constituents. Inflectional stems often derive from roots."
      ],
      "links": [
        [
          "root",
          "root#English"
        ],
        [
          "Inflectional stems",
          "stem"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "wikipedia": [
    "Greek and Latin roots in English"
  ],
  "word": "root word"
}