"sirds" meaning in Letton

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots en vieux prussien issus d’un mot en indo-européen commun",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en letton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Letton",
      "orig": "letton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Étymologies en vieux prussien incluant une reconstruction",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "De l’indo-européen commun *ḱḗr."
  ],
  "lang": "Letton",
  "lang_code": "lv",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Cœur."
      ],
      "id": "fr-sirds-lv-noun-79kBwZs~"
    }
  ],
  "word": "sirds"
}

{
  "categories": [
    "Mots en vieux prussien issus d’un mot en indo-européen commun",
    "Noms communs en letton",
    "letton",
    "Étymologies en vieux prussien incluant une reconstruction"
  ],
  "etymology_texts": [
    "De l’indo-européen commun *ḱḗr."
  ],
  "lang": "Letton",
  "lang_code": "lv",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Cœur."
      ]
    }
  ],
  "word": "sirds"
}