"iatro-" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "grc",
        "3": "ἰατρός",
        "4": "",
        "5": "doctor"
      },
      "expansion": "Ancient Greek ἰατρός (iatrós, “doctor”)",
      "name": "uder"
    }
  ],
  "etymology_text": "From Ancient Greek ἰατρός (iatrós, “doctor”).",
  "head_templates": [
    {
      "args": {
        "1": "it",
        "2": "prefix"
      },
      "expansion": "iatro-",
      "name": "head"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Italian undefined derivations",
          "parents": [
            "Undefined derivations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "forms terms relating to physicians"
      ],
      "id": "en-iatro--it-prefix-isM8TqeQ",
      "links": [
        [
          "physician",
          "physician#English"
        ]
      ],
      "related": [
        {
          "word": "-iatra"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "iatro-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "grc",
        "3": "ἰατρός",
        "4": "",
        "5": "doctor"
      },
      "expansion": "Ancient Greek ἰατρός (iatrós, “doctor”)",
      "name": "uder"
    }
  ],
  "etymology_text": "From Ancient Greek ἰατρός (iatrós, “doctor”).",
  "head_templates": [
    {
      "args": {
        "1": "it",
        "2": "prefix"
      },
      "expansion": "iatro-",
      "name": "head"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "prefix",
  "related": [
    {
      "word": "-iatra"
    }
  ],
  "senses": [
    {
      "categories": [
        "Italian entries with incorrect language header",
        "Italian lemmas",
        "Italian prefixes",
        "Italian terms derived from Ancient Greek",
        "Italian undefined derivations"
      ],
      "glosses": [
        "forms terms relating to physicians"
      ],
      "links": [
        [
          "physician",
          "physician#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "iatro-"
}