ha-core/homeassistant/components/fritzbox/translations/cs.json

{
    "config": {
        "step": {
            "confirm": {
                "data": {
                    "password": "Heslo",
                    "username": "U\u017eivatelsk\u00e9 jm\u00e9no"
                }
            },
            "user": {
                "data": {
                    "host": "Hostitel",
                    "password": "Heslo",
                    "username": "U\u017eivatelsk\u00e9 jm\u00e9no"
                }
            }
        }
    }
}