"presby-" meaning in English

{
  "antonyms": [
    {
      "word": "pedo-"
    }
  ],
  "etymology_text": "From international scientific vocabulary, reflecting a New Latin combining form, reanalyzed from presbyopia, ultimately from πρέσβυς (présbus, “elder, older”); more at presbyopia § Etymology; compare also presbyter § Etymology.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "presby-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "presby-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English links with manual fragments",
          "parents": [
            "Links with manual fragments",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "elder; old."
      ],
      "id": "en-presby--en-prefix-VeqhjH7I",
      "links": [
        [
          "elder",
          "elder#Adjective"
        ],
        [
          "old",
          "old#Adjective"
        ]
      ],
      "tags": [
        "morpheme"
      ],
      "wikipedia": [
        "classical compound",
        "international scientific vocabulary"
      ]
    }
  ],
  "word": "presby-"
}

{
  "antonyms": [
    {
      "word": "pedo-"
    }
  ],
  "etymology_text": "From international scientific vocabulary, reflecting a New Latin combining form, reanalyzed from presbyopia, ultimately from πρέσβυς (présbus, “elder, older”); more at presbyopia § Etymology; compare also presbyter § Etymology.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "presby-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "presby-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English links with manual fragments",
        "English prefixes",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "elder; old."
      ],
      "links": [
        [
          "elder",
          "elder#Adjective"
        ],
        [
          "old",
          "old#Adjective"
        ]
      ],
      "tags": [
        "morpheme"
      ],
      "wikipedia": [
        "classical compound",
        "international scientific vocabulary"
      ]
    }
  ],
  "word": "presby-"
}