"fissassero" meaning in Italien

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de verbes en italien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Italien",
      "orig": "italien",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "che (loro) fissassero"
    }
  ],
  "lang": "Italien",
  "lang_code": "it",
  "pos": "verb",
  "pos_title": "Forme de verbe",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en italien",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "fissare"
        }
      ],
      "glosses": [
        "Troisième personne du pluriel du subjonctif imparfait de fissare."
      ],
      "id": "fr-fissassero-it-verb-1PO80vpo"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "fissassero"
}

{
  "categories": [
    "Formes de verbes en italien",
    "italien"
  ],
  "forms": [
    {
      "form": "che (loro) fissassero"
    }
  ],
  "lang": "Italien",
  "lang_code": "it",
  "pos": "verb",
  "pos_title": "Forme de verbe",
  "senses": [
    {
      "categories": [
        "Wiktionnaire:Exemples manquants en italien"
      ],
      "form_of": [
        {
          "word": "fissare"
        }
      ],
      "glosses": [
        "Troisième personne du pluriel du subjonctif imparfait de fissare."
      ]
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "fissassero"
}