"piro-" meaning in Occitan

{
  "categories": [
    {
      "kind": "other",
      "name": "Préfixes en occitan",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Occitan",
      "orig": "occitan",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "pirotecnia"
    }
  ],
  "etymology_texts": [
    "Dérivé du grec ancien πυρός"
  ],
  "lang": "Occitan",
  "lang_code": "oc",
  "pos": "prefix",
  "pos_title": "Préfixe",
  "senses": [
    {
      "glosses": [
        "Pyro-."
      ],
      "id": "fr-piro--oc-prefix-S-AM6crV"
    }
  ],
  "sounds": [
    {
      "ipa": "\\pi.ɾu\\"
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "piro-"
}

{
  "categories": [
    "Préfixes en occitan",
    "occitan"
  ],
  "derived": [
    {
      "word": "pirotecnia"
    }
  ],
  "etymology_texts": [
    "Dérivé du grec ancien πυρός"
  ],
  "lang": "Occitan",
  "lang_code": "oc",
  "pos": "prefix",
  "pos_title": "Préfixe",
  "senses": [
    {
      "glosses": [
        "Pyro-."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\pi.ɾu\\"
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "piro-"
}