"eu" meaning in Latin

{
  "etymology_templates": [
    {
      "args": {
        "1": "grc",
        "2": "εὖ",
        "pos": "adverb",
        "t": "well"
      },
      "expansion": "Ancient Greek εὖ (eû, “well”, adverb)",
      "name": "cog"
    }
  ],
  "etymology_text": "Compare Ancient Greek εὖ (eû, “well”, adverb).",
  "head_templates": [
    {
      "args": {
        "1": "la",
        "2": "intj"
      },
      "expansion": "eu",
      "name": "head"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 26 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "bravo! well done!"
      ],
      "id": "en-eu-la-intj-SuTBmt4O",
      "links": [
        [
          "bravo",
          "bravo"
        ],
        [
          "well done",
          "well done"
        ]
      ],
      "related": [
        {
          "word": "euge"
        },
        {
          "word": "eugepae"
        },
        {
          "word": "euhoe"
        },
        {
          "word": "e͡uax"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈei̯/",
      "tags": [
        "Classical-Latin"
      ]
    },
    {
      "ipa": "[ˈɛi̯]",
      "tags": [
        "Classical-Latin"
      ]
    },
    {
      "ipa": "/ˈej/",
      "note": "modern Italianate Ecclesiastical"
    },
    {
      "ipa": "[ˈɛj]",
      "note": "modern Italianate Ecclesiastical"
    }
  ],
  "word": "eu"
}

{
  "categories": [
    "Pages with 26 entries",
    "Pages with entries"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "grc",
        "2": "εὖ",
        "pos": "adverb",
        "t": "well"
      },
      "expansion": "Ancient Greek εὖ (eû, “well”, adverb)",
      "name": "cog"
    }
  ],
  "etymology_text": "Compare Ancient Greek εὖ (eû, “well”, adverb).",
  "head_templates": [
    {
      "args": {
        "1": "la",
        "2": "intj"
      },
      "expansion": "eu",
      "name": "head"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "intj",
  "related": [
    {
      "word": "euge"
    },
    {
      "word": "eugepae"
    },
    {
      "word": "euhoe"
    },
    {
      "word": "e͡uax"
    }
  ],
  "senses": [
    {
      "categories": [
        "Latin 1-syllable words",
        "Latin entries with incorrect language header",
        "Latin interjections",
        "Latin lemmas",
        "Latin terms with IPA pronunciation",
        "Pages with 26 entries",
        "Pages with entries"
      ],
      "glosses": [
        "bravo! well done!"
      ],
      "links": [
        [
          "bravo",
          "bravo"
        ],
        [
          "well done",
          "well done"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈei̯/",
      "tags": [
        "Classical-Latin"
      ]
    },
    {
      "ipa": "[ˈɛi̯]",
      "tags": [
        "Classical-Latin"
      ]
    },
    {
      "ipa": "/ˈej/",
      "note": "modern Italianate Ecclesiastical"
    },
    {
      "ipa": "[ˈɛj]",
      "note": "modern Italianate Ecclesiastical"
    }
  ],
  "word": "eu"
}