"eth-" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ethyl",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *h₂eydʰ-der.\nProto-Hellenic *áitʰō\nAncient Greek αἴθω (aíthō)\n▲\nAncient Greek ᾱ̓ήρ (āḗr)influ.?\nAncient Greek αἰθήρ (aithḗr)der.\nLatin aethērbor.\nGerman Äther\nGerman Ether\nProto-Indo-European *swel-der.?\nAncient Greek ῡ̔́λη (hū́lē)der.\nGerman -yl\nGerman Ethylbor.\nEnglish ethyl\nEnglish eth-",
      "name": "etymon"
    },
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "αἰθήρ",
        "t": "ether"
      },
      "expansion": "Ancient Greek αἰθήρ (aithḗr, “ether”)",
      "name": "der"
    }
  ],
  "etymology_text": "Etymology tree\nProto-Indo-European *h₂eydʰ-der.\nProto-Hellenic *áitʰō\nAncient Greek αἴθω (aíthō)\n▲\nAncient Greek ᾱ̓ήρ (āḗr)influ.?\nAncient Greek αἰθήρ (aithḗr)der.\nLatin aethērbor.\nGerman Äther\nGerman Ether\nProto-Indo-European *swel-der.?\nAncient Greek ῡ̔́λη (hū́lē)der.\nGerman -yl\nGerman Ethylbor.\nEnglish ethyl\nEnglish eth-\nFrom ethyl. Ultimately from Ancient Greek αἰθήρ (aithḗr, “ether”).",
  "head_templates": [
    {
      "args": {},
      "expansion": "eth-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using etymon with no ID",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 4 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Organic chemistry",
          "orig": "en:Organic chemistry",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "ethane"
        },
        {
          "word": "ethanol"
        },
        {
          "word": "ethyl"
        }
      ],
      "glosses": [
        "Used as a combining form to denote the presence of 2 carbon atoms in the parent chain when forming names of organic compounds."
      ],
      "id": "en-eth--en-prefix-5afspFZ0",
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "combining form",
          "combining form"
        ],
        [
          "carbon",
          "carbon"
        ],
        [
          "atom",
          "atom"
        ],
        [
          "parent chain",
          "parent chain"
        ],
        [
          "organic compound",
          "organic compound"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) Used as a combining form to denote the presence of 2 carbon atoms in the parent chain when forming names of organic compounds."
      ],
      "related": [
        {
          "word": "metho-"
        },
        {
          "word": "prop-"
        },
        {
          "word": "but-"
        }
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "word": "eth-"
}

{
  "derived": [
    {
      "word": "ethane"
    },
    {
      "word": "ethanol"
    },
    {
      "word": "ethyl"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ethyl",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *h₂eydʰ-der.\nProto-Hellenic *áitʰō\nAncient Greek αἴθω (aíthō)\n▲\nAncient Greek ᾱ̓ήρ (āḗr)influ.?\nAncient Greek αἰθήρ (aithḗr)der.\nLatin aethērbor.\nGerman Äther\nGerman Ether\nProto-Indo-European *swel-der.?\nAncient Greek ῡ̔́λη (hū́lē)der.\nGerman -yl\nGerman Ethylbor.\nEnglish ethyl\nEnglish eth-",
      "name": "etymon"
    },
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "αἰθήρ",
        "t": "ether"
      },
      "expansion": "Ancient Greek αἰθήρ (aithḗr, “ether”)",
      "name": "der"
    }
  ],
  "etymology_text": "Etymology tree\nProto-Indo-European *h₂eydʰ-der.\nProto-Hellenic *áitʰō\nAncient Greek αἴθω (aíthō)\n▲\nAncient Greek ᾱ̓ήρ (āḗr)influ.?\nAncient Greek αἰθήρ (aithḗr)der.\nLatin aethērbor.\nGerman Äther\nGerman Ether\nProto-Indo-European *swel-der.?\nAncient Greek ῡ̔́λη (hū́lē)der.\nGerman -yl\nGerman Ethylbor.\nEnglish ethyl\nEnglish eth-\nFrom ethyl. Ultimately from Ancient Greek αἰθήρ (aithḗr, “ether”).",
  "head_templates": [
    {
      "args": {},
      "expansion": "eth-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "related": [
    {
      "word": "metho-"
    },
    {
      "word": "prop-"
    },
    {
      "word": "but-"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with etymology trees",
        "English entries with incorrect language header",
        "English lemmas",
        "English prefixes",
        "English terms derived from Ancient Greek",
        "English terms derived from German",
        "English terms derived from Latin",
        "English terms derived from Proto-Hellenic",
        "English terms derived from Proto-Indo-European",
        "English terms derived from the Proto-Indo-European root *h₂eydʰ-",
        "Pages using catfix",
        "Pages using etymon with no ID",
        "Pages with 4 entries",
        "Pages with entries",
        "Pages with etymology trees",
        "en:Hydrocarbon chain prefixes",
        "en:Organic chemistry"
      ],
      "glosses": [
        "Used as a combining form to denote the presence of 2 carbon atoms in the parent chain when forming names of organic compounds."
      ],
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "combining form",
          "combining form"
        ],
        [
          "carbon",
          "carbon"
        ],
        [
          "atom",
          "atom"
        ],
        [
          "parent chain",
          "parent chain"
        ],
        [
          "organic compound",
          "organic compound"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) Used as a combining form to denote the presence of 2 carbon atoms in the parent chain when forming names of organic compounds."
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "word": "eth-"
}