"proto-" meaning in Polish

{
  "etymology_templates": [
    {
      "args": {
        "1": "derived terms",
        "2": "Derived"
      },
      "expansion": "Derived",
      "name": "glossary"
    },
    {
      "args": {
        "1": "pl",
        "2": "grc",
        "3": "πρωτο-",
        "4": "",
        "5": "",
        "g": "",
        "g2": "",
        "g3": "",
        "id": "",
        "lit": "",
        "nocat": "",
        "pos": "",
        "sc": "",
        "sort": "",
        "tr": "",
        "ts": ""
      },
      "expansion": "Ancient Greek πρωτο- (prōto-)",
      "name": "der"
    },
    {
      "args": {
        "1": "pl",
        "2": "grc",
        "3": "πρωτο-"
      },
      "expansion": "Derived from Ancient Greek πρωτο- (prōto-)",
      "name": "der+"
    }
  ],
  "etymology_text": "Derived from Ancient Greek πρωτο- (prōto-).",
  "head_templates": [
    {
      "args": {
        "1": "pl",
        "2": "prefix"
      },
      "expansion": "proto-",
      "name": "head"
    }
  ],
  "hyphenation": [
    "[please"
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 8 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Polish entries with Template:pl-pr without syllabification",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Polish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "pl",
          "name": "Chemistry",
          "orig": "pl:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "proto- + -liza → protoliza",
          "type": "example"
        }
      ],
      "glosses": [
        "proto-"
      ],
      "id": "en-proto--pl-prefix-kZzPpeSn",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "proto-",
          "proto-#English"
        ]
      ],
      "raw_glosses": [
        "(chemistry) proto-"
      ],
      "related": [
        {
          "word": "pra-"
        }
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/prɔ.tɔ/"
    },
    {
      "rhymes": "-ɔtɔ"
    }
  ],
  "word": "proto-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "derived terms",
        "2": "Derived"
      },
      "expansion": "Derived",
      "name": "glossary"
    },
    {
      "args": {
        "1": "pl",
        "2": "grc",
        "3": "πρωτο-",
        "4": "",
        "5": "",
        "g": "",
        "g2": "",
        "g3": "",
        "id": "",
        "lit": "",
        "nocat": "",
        "pos": "",
        "sc": "",
        "sort": "",
        "tr": "",
        "ts": ""
      },
      "expansion": "Ancient Greek πρωτο- (prōto-)",
      "name": "der"
    },
    {
      "args": {
        "1": "pl",
        "2": "grc",
        "3": "πρωτο-"
      },
      "expansion": "Derived from Ancient Greek πρωτο- (prōto-)",
      "name": "der+"
    }
  ],
  "etymology_text": "Derived from Ancient Greek πρωτο- (prōto-).",
  "head_templates": [
    {
      "args": {
        "1": "pl",
        "2": "prefix"
      },
      "expansion": "proto-",
      "name": "head"
    }
  ],
  "hyphenation": [
    "[please"
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "prefix",
  "related": [
    {
      "word": "pra-"
    }
  ],
  "senses": [
    {
      "categories": [
        "Pages using catfix",
        "Pages with 8 entries",
        "Pages with entries",
        "Polish 2-syllable words",
        "Polish entries with Template:pl-pr without syllabification",
        "Polish entries with incorrect language header",
        "Polish lemmas",
        "Polish prefixes",
        "Polish terms derived from Ancient Greek",
        "Polish terms with IPA pronunciation",
        "Polish terms with audio pronunciation",
        "Rhymes:Polish/ɔtɔ",
        "Rhymes:Polish/ɔtɔ/2 syllables",
        "pl:Chemistry"
      ],
      "examples": [
        {
          "text": "proto- + -liza → protoliza",
          "type": "example"
        }
      ],
      "glosses": [
        "proto-"
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "proto-",
          "proto-#English"
        ]
      ],
      "raw_glosses": [
        "(chemistry) proto-"
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/prɔ.tɔ/"
    },
    {
      "rhymes": "-ɔtɔ"
    }
  ],
  "word": "proto-"
}