"εὖ" meaning in Ancient Greek

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "en",
            "2": "eu-"
          },
          "expansion": "English: eu-",
          "name": "desc"
        }
      ],
      "text": "English: eu-"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "el",
            "2": "ευ"
          },
          "expansion": "Greek: ευ (ef)",
          "name": "desc"
        }
      ],
      "text": "Greek: ευ (ef)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "grc",
        "2": "ἐΰς>good",
        "id": "well"
      },
      "expansion": "",
      "name": "etymon"
    },
    {
      "args": {
        "1": "grc",
        "2": "grk-pro",
        "3": "*ehu-"
      },
      "expansion": "Proto-Hellenic *ehu-",
      "name": "inh"
    },
    {
      "args": {
        "1": "grc",
        "2": "ine-pro",
        "3": "*h₁su-",
        "4": "",
        "5": "good"
      },
      "expansion": "Proto-Indo-European *h₁su- (“good”)",
      "name": "der"
    }
  ],
  "etymology_text": "Adverbial use of neuter accusative singular of ἐΰς (eǘs, “good”), from Proto-Hellenic *ehu-, from Proto-Indo-European *h₁su- (“good”).",
  "forms": [
    {
      "form": "eû",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "grc",
        "2": "adverb",
        "3": "indeclinable"
      },
      "expansion": "εὖ • (eû) (indeclinable)",
      "name": "head"
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Ancient Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with DISPLAYTITLE conflicts",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "roman": "eu-",
          "word": "εὐ-"
        }
      ],
      "glosses": [
        "well"
      ],
      "id": "en-εὖ-grc-adv-p3Irdl0V",
      "links": [
        [
          "well",
          "well"
        ]
      ],
      "synonyms": [
        {
          "roman": "eǘ",
          "tags": [
            "Epic"
          ],
          "word": "ἐΰ"
        }
      ],
      "tags": [
        "indeclinable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/êu̯/"
    },
    {
      "ipa": "/eβ/"
    },
    {
      "ipa": "/ev/"
    },
    {
      "ipa": "/êu̯/",
      "note": "5ᵗʰ BCE Attic"
    },
    {
      "ipa": "/ew/",
      "note": "1ˢᵗ CE Egyptian"
    },
    {
      "ipa": "/eβ/",
      "note": "4ᵗʰ CE Koine"
    },
    {
      "ipa": "/ev/",
      "note": "10ᵗʰ CE Byzantine"
    },
    {
      "ipa": "/ev/",
      "note": "15ᵗʰ CE Constantinopolitan"
    }
  ],
  "word": "εὖ"
}

{
  "derived": [
    {
      "roman": "eu-",
      "word": "εὐ-"
    }
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "en",
            "2": "eu-"
          },
          "expansion": "English: eu-",
          "name": "desc"
        }
      ],
      "text": "English: eu-"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "el",
            "2": "ευ"
          },
          "expansion": "Greek: ευ (ef)",
          "name": "desc"
        }
      ],
      "text": "Greek: ευ (ef)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "grc",
        "2": "ἐΰς>good",
        "id": "well"
      },
      "expansion": "",
      "name": "etymon"
    },
    {
      "args": {
        "1": "grc",
        "2": "grk-pro",
        "3": "*ehu-"
      },
      "expansion": "Proto-Hellenic *ehu-",
      "name": "inh"
    },
    {
      "args": {
        "1": "grc",
        "2": "ine-pro",
        "3": "*h₁su-",
        "4": "",
        "5": "good"
      },
      "expansion": "Proto-Indo-European *h₁su- (“good”)",
      "name": "der"
    }
  ],
  "etymology_text": "Adverbial use of neuter accusative singular of ἐΰς (eǘs, “good”), from Proto-Hellenic *ehu-, from Proto-Indo-European *h₁su- (“good”).",
  "forms": [
    {
      "form": "eû",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "grc",
        "2": "adverb",
        "3": "indeclinable"
      },
      "expansion": "εὖ • (eû) (indeclinable)",
      "name": "head"
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Ancient Greek 1-syllable words",
        "Ancient Greek adverbs",
        "Ancient Greek entries with incorrect language header",
        "Ancient Greek lemmas",
        "Ancient Greek terms derived from Proto-Hellenic",
        "Ancient Greek terms derived from Proto-Indo-European",
        "Ancient Greek terms derived from the Proto-Indo-European root *h₁es-",
        "Ancient Greek terms inherited from Proto-Hellenic",
        "Ancient Greek terms inherited from Proto-Indo-European",
        "Ancient Greek terms with IPA pronunciation",
        "Pages with 1 entry",
        "Pages with DISPLAYTITLE conflicts",
        "Pages with entries"
      ],
      "glosses": [
        "well"
      ],
      "links": [
        [
          "well",
          "well"
        ]
      ],
      "tags": [
        "indeclinable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/êu̯/"
    },
    {
      "ipa": "/eβ/"
    },
    {
      "ipa": "/ev/"
    },
    {
      "ipa": "/êu̯/",
      "note": "5ᵗʰ BCE Attic"
    },
    {
      "ipa": "/ew/",
      "note": "1ˢᵗ CE Egyptian"
    },
    {
      "ipa": "/eβ/",
      "note": "4ᵗʰ CE Koine"
    },
    {
      "ipa": "/ev/",
      "note": "10ᵗʰ CE Byzantine"
    },
    {
      "ipa": "/ev/",
      "note": "15ᵗʰ CE Constantinopolitan"
    }
  ],
  "synonyms": [
    {
      "roman": "eǘ",
      "tags": [
        "Epic"
      ],
      "word": "ἐΰ"
    }
  ],
  "word": "εὖ"
}