"-en-" meaning in Espéranto

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots en espéranto issus d’un mot en latin",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Racines diverses non académiques en espéranto",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Suffixes en espéranto",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Espéranto",
      "orig": "espéranto",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Du latin -inae, terminaison des sous-familles taxinomiques."
  ],
  "lang": "Espéranto",
  "lang_code": "eo",
  "pos": "suffix",
  "pos_title": "Suffixe",
  "raw_tags": [
    "mot-racine Néo"
  ],
  "related": [
    {
      "raw_tags": [
        "Suffixe pour construire le nom des familles taxinomiques"
      ],
      "word": "-idés"
    },
    {
      "raw_tags": [
        "Suffixe pour construire le nom des tribus taxinomiques"
      ],
      "word": "-ini"
    }
  ],
  "senses": [
    {
      "examples": [
        {
          "text": "libelo (libellule) <-> libelenoj (libellulinés)"
        }
      ],
      "glosses": [
        "Suffixe de fait pour construire le nom des sous-familles taxinomiques."
      ],
      "id": "fr--en--eo-suffix-hyK9sAsa"
    }
  ],
  "sounds": [
    {
      "ipa": "\\en\\"
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "-en-"
}

{
  "categories": [
    "Mots en espéranto issus d’un mot en latin",
    "Racines diverses non académiques en espéranto",
    "Suffixes en espéranto",
    "espéranto"
  ],
  "etymology_texts": [
    "Du latin -inae, terminaison des sous-familles taxinomiques."
  ],
  "lang": "Espéranto",
  "lang_code": "eo",
  "pos": "suffix",
  "pos_title": "Suffixe",
  "raw_tags": [
    "mot-racine Néo"
  ],
  "related": [
    {
      "raw_tags": [
        "Suffixe pour construire le nom des familles taxinomiques"
      ],
      "word": "-idés"
    },
    {
      "raw_tags": [
        "Suffixe pour construire le nom des tribus taxinomiques"
      ],
      "word": "-ini"
    }
  ],
  "senses": [
    {
      "examples": [
        {
          "text": "libelo (libellule) <-> libelenoj (libellulinés)"
        }
      ],
      "glosses": [
        "Suffixe de fait pour construire le nom des sous-familles taxinomiques."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\en\\"
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "-en-"
}