"-cardio" meaning in Spanish

{
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "grc",
        "3": "κᾰρδῐ́ᾱ",
        "t": "heart"
      },
      "expansion": "Ancient Greek κᾰρδῐ́ᾱ (kardíā, “heart”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek κᾰρδῐ́ᾱ (kardíā, “heart”).",
  "forms": [
    {
      "form": "-cardios",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "-cardio m (noun-forming suffix, plural -cardios)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "-cardium (relating to the heart)"
      ],
      "id": "en--cardio-es-suffix-sRq1TOlx",
      "links": [
        [
          "-cardium",
          "-cardium"
        ]
      ],
      "related": [
        {
          "word": "cardio-"
        }
      ],
      "tags": [
        "masculine",
        "morpheme"
      ]
    }
  ],
  "word": "-cardio"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "grc",
        "3": "κᾰρδῐ́ᾱ",
        "t": "heart"
      },
      "expansion": "Ancient Greek κᾰρδῐ́ᾱ (kardíā, “heart”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek κᾰρδῐ́ᾱ (kardíā, “heart”).",
  "forms": [
    {
      "form": "-cardios",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "-cardio m (noun-forming suffix, plural -cardios)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "suffix",
  "related": [
    {
      "word": "cardio-"
    }
  ],
  "senses": [
    {
      "categories": [
        "Spanish countable suffixes",
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish masculine suffixes",
        "Spanish noun-forming suffixes",
        "Spanish suffixes",
        "Spanish suffixes with red links in their headword lines",
        "Spanish terms derived from Ancient Greek"
      ],
      "glosses": [
        "-cardium (relating to the heart)"
      ],
      "links": [
        [
          "-cardium",
          "-cardium"
        ]
      ],
      "tags": [
        "masculine",
        "morpheme"
      ]
    }
  ],
  "word": "-cardio"
}