"erco" meaning in Esperanto

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "de",
        "3": "Erz"
      },
      "expansion": "German Erz",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "erco"
      },
      "expansion": "Ido erco",
      "name": "cog"
    },
    {
      "args": {
        "1": "yi",
        "2": "אַרץ"
      },
      "expansion": "Yiddish אַרץ (arts)",
      "name": "cog"
    }
  ],
  "etymology_text": "From German Erz. Perhaps influenced by Ido erco, attested earlier. Compare Yiddish אַרץ (arts).",
  "forms": [
    {
      "form": "ercon",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "ercoj",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "ercojn",
      "tags": [
        "accusative",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "erco (accusative singular ercon, plural ercoj, accusative plural ercojn)",
      "name": "eo-head"
    }
  ],
  "hyphenation": [
    "er‧co"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "eo",
          "name": "Mineralogy",
          "orig": "eo:Mineralogy",
          "parents": [
            "Geology",
            "Earth sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "ore"
      ],
      "id": "en-erco-eo-noun--L0XvqDp",
      "links": [
        [
          "mineralogy",
          "mineralogy"
        ],
        [
          "ore",
          "ore"
        ]
      ],
      "raw_glosses": [
        "(mineralogy) ore"
      ],
      "topics": [
        "chemistry",
        "geography",
        "geology",
        "mineralogy",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q143 (epo)-Lepticed7-erco.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/8/8f/LL-Q143_%28epo%29-Lepticed7-erco.wav/LL-Q143_%28epo%29-Lepticed7-erco.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/8/8f/LL-Q143_%28epo%29-Lepticed7-erco.wav/LL-Q143_%28epo%29-Lepticed7-erco.wav.ogg"
    },
    {
      "ipa": "[ˈert͡so]"
    },
    {
      "rhymes": "-ert͡so"
    }
  ],
  "word": "erco"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "de",
        "3": "Erz"
      },
      "expansion": "German Erz",
      "name": "der"
    },
    {
      "args": {
        "1": "io",
        "2": "erco"
      },
      "expansion": "Ido erco",
      "name": "cog"
    },
    {
      "args": {
        "1": "yi",
        "2": "אַרץ"
      },
      "expansion": "Yiddish אַרץ (arts)",
      "name": "cog"
    }
  ],
  "etymology_text": "From German Erz. Perhaps influenced by Ido erco, attested earlier. Compare Yiddish אַרץ (arts).",
  "forms": [
    {
      "form": "ercon",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "ercoj",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "ercojn",
      "tags": [
        "accusative",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "erco (accusative singular ercon, plural ercoj, accusative plural ercojn)",
      "name": "eo-head"
    }
  ],
  "hyphenation": [
    "er‧co"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Esperanto entries with incorrect language header",
        "Esperanto lemmas",
        "Esperanto nouns",
        "Esperanto nouns with red links in their headword lines",
        "Esperanto terms derived from German",
        "Esperanto terms with IPA pronunciation",
        "Pages with 2 entries",
        "Pages with entries",
        "Rhymes:Esperanto/ert͡so",
        "eo:Mineralogy"
      ],
      "glosses": [
        "ore"
      ],
      "links": [
        [
          "mineralogy",
          "mineralogy"
        ],
        [
          "ore",
          "ore"
        ]
      ],
      "raw_glosses": [
        "(mineralogy) ore"
      ],
      "topics": [
        "chemistry",
        "geography",
        "geology",
        "mineralogy",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q143 (epo)-Lepticed7-erco.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/8/8f/LL-Q143_%28epo%29-Lepticed7-erco.wav/LL-Q143_%28epo%29-Lepticed7-erco.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/8/8f/LL-Q143_%28epo%29-Lepticed7-erco.wav/LL-Q143_%28epo%29-Lepticed7-erco.wav.ogg"
    },
    {
      "ipa": "[ˈert͡so]"
    },
    {
      "rhymes": "-ert͡so"
    }
  ],
  "word": "erco"
}