"ĉaŭ" meaning in Esperanto

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "it",
        "3": "ciao",
        "4": "",
        "5": "hello; goodbye"
      },
      "expansion": "Italian ciao (“hello; goodbye”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "eo",
        "2": "vec",
        "3": "ciao",
        "4": "",
        "5": "hello; goodbye",
        "lit": "􂀿I am your􂁀 servant"
      },
      "expansion": "Venetian ciao (“hello; goodbye”, literally “[I am your] servant”)",
      "name": "der"
    },
    {
      "args": {
        "1": "eo",
        "2": "ML.",
        "3": "-"
      },
      "expansion": "Medieval Latin",
      "name": "der"
    },
    {
      "args": {
        "1": "eo",
        "2": "sklavo",
        "3": "slavo"
      },
      "expansion": "Doublet of sklavo and slavo",
      "name": "doublet"
    },
    {
      "args": {
        "1": "de",
        "2": "servus",
        "3": "",
        "4": "hello; goodbye",
        "w": "1"
      },
      "expansion": "German servus (“hello; goodbye”)",
      "name": "m+"
    }
  ],
  "etymology_text": "Borrowed from Italian ciao (“hello; goodbye”), from Venetian ciao (“hello; goodbye”, literally “[I am your] servant”), from Medieval Latin sclavus (“Slav; slave”). Doublet of sklavo and slavo. Colloquial use likely reinforced by German servus (“hello; goodbye”), which is used similarly.",
  "hyphenation": [
    "ĉaŭ"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto farewells",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto greetings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto neologisms",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "ciao; hello, goodbye"
      ],
      "id": "en-ĉaŭ-eo-intj-Esx7uOxr",
      "links": [
        [
          "ciao",
          "ciao"
        ],
        [
          "hello",
          "hello"
        ],
        [
          "goodbye",
          "goodbye"
        ]
      ],
      "raw_glosses": [
        "(neologism, informal) ciao; hello, goodbye"
      ],
      "synonyms": [
        {
          "word": "saluton"
        },
        {
          "word": "adiaŭ"
        }
      ],
      "tags": [
        "informal",
        "neologism"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ʃau̯]"
    }
  ],
  "word": "ĉaŭ"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "it",
        "3": "ciao",
        "4": "",
        "5": "hello; goodbye"
      },
      "expansion": "Italian ciao (“hello; goodbye”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "eo",
        "2": "vec",
        "3": "ciao",
        "4": "",
        "5": "hello; goodbye",
        "lit": "􂀿I am your􂁀 servant"
      },
      "expansion": "Venetian ciao (“hello; goodbye”, literally “[I am your] servant”)",
      "name": "der"
    },
    {
      "args": {
        "1": "eo",
        "2": "ML.",
        "3": "-"
      },
      "expansion": "Medieval Latin",
      "name": "der"
    },
    {
      "args": {
        "1": "eo",
        "2": "sklavo",
        "3": "slavo"
      },
      "expansion": "Doublet of sklavo and slavo",
      "name": "doublet"
    },
    {
      "args": {
        "1": "de",
        "2": "servus",
        "3": "",
        "4": "hello; goodbye",
        "w": "1"
      },
      "expansion": "German servus (“hello; goodbye”)",
      "name": "m+"
    }
  ],
  "etymology_text": "Borrowed from Italian ciao (“hello; goodbye”), from Venetian ciao (“hello; goodbye”, literally “[I am your] servant”), from Medieval Latin sclavus (“Slav; slave”). Doublet of sklavo and slavo. Colloquial use likely reinforced by German servus (“hello; goodbye”), which is used similarly.",
  "hyphenation": [
    "ĉaŭ"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "Esperanto doublets",
        "Esperanto entries with incorrect language header",
        "Esperanto farewells",
        "Esperanto greetings",
        "Esperanto informal terms",
        "Esperanto interjections",
        "Esperanto lemmas",
        "Esperanto neologisms",
        "Esperanto terms borrowed from Italian",
        "Esperanto terms derived from Italian",
        "Esperanto terms derived from Medieval Latin",
        "Esperanto terms derived from Venetian",
        "Esperanto terms with IPA pronunciation",
        "Pages with 1 entry"
      ],
      "glosses": [
        "ciao; hello, goodbye"
      ],
      "links": [
        [
          "ciao",
          "ciao"
        ],
        [
          "hello",
          "hello"
        ],
        [
          "goodbye",
          "goodbye"
        ]
      ],
      "raw_glosses": [
        "(neologism, informal) ciao; hello, goodbye"
      ],
      "synonyms": [
        {
          "word": "saluton"
        },
        {
          "word": "adiaŭ"
        }
      ],
      "tags": [
        "informal",
        "neologism"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ʃau̯]"
    }
  ],
  "word": "ĉaŭ"
}