"etno-" meaning in Polish

{
  "etymology_templates": [
    {
      "args": {
        "1": "pl",
        "2": "der",
        "3": "grc>ἔθνος>group",
        "id": "ethno-",
        "tree": "1"
      },
      "expansion": "Etymology tree\nAncient Greek ἔθνος (éthnos)der.\nPolish etno-",
      "name": "etymon"
    },
    {
      "args": {
        "1": "derived terms",
        "2": "Derived"
      },
      "expansion": "Derived",
      "name": "glossary"
    },
    {
      "args": {
        "1": "pl",
        "2": "grc",
        "3": "ἔθνος",
        "4": "",
        "5": "",
        "g": "",
        "g2": "",
        "g3": "",
        "id": "",
        "lit": "",
        "nocat": "",
        "pos": "",
        "sc": "",
        "sort": "",
        "tr": "",
        "ts": ""
      },
      "expansion": "Ancient Greek ἔθνος (éthnos)",
      "name": "der"
    },
    {
      "args": {
        "1": "pl",
        "2": "grc",
        "3": "ἔθνος"
      },
      "expansion": "Derived from Ancient Greek ἔθνος (éthnos)",
      "name": "der+"
    }
  ],
  "etymology_text": "Etymology tree\nAncient Greek ἔθνος (éthnos)der.\nPolish etno-\nDerived from Ancient Greek ἔθνος (éthnos).",
  "head_templates": [
    {
      "args": {
        "1": "pl",
        "2": "prefix"
      },
      "expansion": "etno-",
      "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 7 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 etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Polish entries with incorrect language header",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "etno- + -logia → etnologia",
          "type": "example"
        }
      ],
      "glosses": [
        "ethno-"
      ],
      "id": "en-etno--pl-prefix-S2YtpKSH",
      "links": [
        [
          "ethno-",
          "ethno-#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɛt.nɔ/"
    },
    {
      "rhymes": "-ɛtnɔ"
    }
  ],
  "word": "etno-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "pl",
        "2": "der",
        "3": "grc>ἔθνος>group",
        "id": "ethno-",
        "tree": "1"
      },
      "expansion": "Etymology tree\nAncient Greek ἔθνος (éthnos)der.\nPolish etno-",
      "name": "etymon"
    },
    {
      "args": {
        "1": "derived terms",
        "2": "Derived"
      },
      "expansion": "Derived",
      "name": "glossary"
    },
    {
      "args": {
        "1": "pl",
        "2": "grc",
        "3": "ἔθνος",
        "4": "",
        "5": "",
        "g": "",
        "g2": "",
        "g3": "",
        "id": "",
        "lit": "",
        "nocat": "",
        "pos": "",
        "sc": "",
        "sort": "",
        "tr": "",
        "ts": ""
      },
      "expansion": "Ancient Greek ἔθνος (éthnos)",
      "name": "der"
    },
    {
      "args": {
        "1": "pl",
        "2": "grc",
        "3": "ἔθνος"
      },
      "expansion": "Derived from Ancient Greek ἔθνος (éthnos)",
      "name": "der+"
    }
  ],
  "etymology_text": "Etymology tree\nAncient Greek ἔθνος (éthnos)der.\nPolish etno-\nDerived from Ancient Greek ἔθνος (éthnos).",
  "head_templates": [
    {
      "args": {
        "1": "pl",
        "2": "prefix"
      },
      "expansion": "etno-",
      "name": "head"
    }
  ],
  "hyphenation": [
    "[please"
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "Pages using catfix",
        "Pages with 7 entries",
        "Pages with entries",
        "Polish 2-syllable words",
        "Polish entries with Template:pl-pr without syllabification",
        "Polish entries with etymology trees",
        "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/ɛtnɔ",
        "Rhymes:Polish/ɛtnɔ/2 syllables"
      ],
      "examples": [
        {
          "text": "etno- + -logia → etnologia",
          "type": "example"
        }
      ],
      "glosses": [
        "ethno-"
      ],
      "links": [
        [
          "ethno-",
          "ethno-#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɛt.nɔ/"
    },
    {
      "rhymes": "-ɛtnɔ"
    }
  ],
  "word": "etno-"
}