"base right" meaning in English

{
  "forms": [
    {
      "form": "base rights",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "base right (plural base rights)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Scots law",
          "orig": "en:Scots law",
          "parents": [
            "Law",
            "Scotland",
            "Justice",
            "United Kingdom",
            "Society",
            "British Isles",
            "Europe",
            "All topics",
            "Islands",
            "Earth",
            "Eurasia",
            "Fundamental",
            "Places",
            "Nature",
            "Names",
            "Proper nouns",
            "Terms by semantic function",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The right which a disposer acquires when disposing of feudal property."
      ],
      "id": "en-base_right-en-noun-JaPM4G0v",
      "links": [
        [
          "disposer",
          "disposer"
        ],
        [
          "acquire",
          "acquire"
        ],
        [
          "feudal",
          "feudal"
        ],
        [
          "property",
          "property"
        ]
      ],
      "qualifier": "Scots law",
      "raw_glosses": [
        "(Scots law, historical) The right which a disposer acquires when disposing of feudal property."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "base right"
}

{
  "forms": [
    {
      "form": "base rights",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "base right (plural base rights)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with historical senses",
        "en:Scots law"
      ],
      "glosses": [
        "The right which a disposer acquires when disposing of feudal property."
      ],
      "links": [
        [
          "disposer",
          "disposer"
        ],
        [
          "acquire",
          "acquire"
        ],
        [
          "feudal",
          "feudal"
        ],
        [
          "property",
          "property"
        ]
      ],
      "qualifier": "Scots law",
      "raw_glosses": [
        "(Scots law, historical) The right which a disposer acquires when disposing of feudal property."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "base right"
}