"historic rhyme" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "historic",
        "3": "rhyme"
      },
      "expansion": "historic + rhyme",
      "name": "com"
    }
  ],
  "etymology_text": "From historic + rhyme.",
  "forms": [
    {
      "form": "historic rhymes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "historic rhyme (plural historic rhymes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Rhymes that were full rhymes in an older stage of the language, but have since become eye rhymes owing to sound changes. Historic rhymes are used by historical linguists to reconstruct the phonology of old languages."
      ],
      "id": "en-historic_rhyme-en-noun-7a3Dxa7C",
      "links": [
        [
          "full rhyme",
          "perfect rhyme"
        ],
        [
          "eye rhyme",
          "eye rhyme"
        ],
        [
          "sound change",
          "sound change"
        ]
      ]
    }
  ],
  "word": "historic rhyme"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "historic",
        "3": "rhyme"
      },
      "expansion": "historic + rhyme",
      "name": "com"
    }
  ],
  "etymology_text": "From historic + rhyme.",
  "forms": [
    {
      "form": "historic rhymes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "historic rhyme (plural historic rhymes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Rhymes that were full rhymes in an older stage of the language, but have since become eye rhymes owing to sound changes. Historic rhymes are used by historical linguists to reconstruct the phonology of old languages."
      ],
      "links": [
        [
          "full rhyme",
          "perfect rhyme"
        ],
        [
          "eye rhyme",
          "eye rhyme"
        ],
        [
          "sound change",
          "sound change"
        ]
      ]
    }
  ],
  "word": "historic rhyme"
}