"-thi" meaning in Xhosa

{
  "categories": [
    {
      "kind": "other",
      "name": "Woorden in het Xhosa",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Zelfstandig naamwoord in het Xhosa",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "-thi kamaqo"
    },
    {
      "word": "stok"
    },
    {
      "word": "stokken"
    }
  ],
  "lang": "Xhosa",
  "lang_code": "xh",
  "pos": "noun",
  "pos_title": "Zelfstandig naamwoord",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Plantkunde_in_het_Xhosa",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "boom"
      ],
      "id": "nl--thi-xh-noun-gfUjN-u0",
      "topics": [
        "botany"
      ]
    },
    {
      "glosses": [
        "bomen"
      ],
      "id": "nl--thi-xh-noun-CDbLvveu"
    }
  ],
  "word": "-thi"
}

{
  "categories": [
    {
      "kind": "other",
      "name": "Werkwoord in het Xhosa",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Woorden in het Xhosa",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Xhosa",
  "lang_code": "xh",
  "pos": "verb",
  "pos_title": "Werkwoord",
  "senses": [
    {
      "glosses": [
        "zeggen"
      ],
      "id": "nl--thi-xh-verb-62RGI2Oi"
    },
    {
      "glosses": [
        "leidt vaak een uitdrukking in met een ideofoon"
      ],
      "id": "nl--thi-xh-verb-PAExHKk-"
    }
  ],
  "word": "-thi"
}

{
  "categories": [
    "Woorden in het Xhosa",
    "Zelfstandig naamwoord in het Xhosa"
  ],
  "derived": [
    {
      "word": "-thi kamaqo"
    },
    {
      "word": "stok"
    },
    {
      "word": "stokken"
    }
  ],
  "lang": "Xhosa",
  "lang_code": "xh",
  "pos": "noun",
  "pos_title": "Zelfstandig naamwoord",
  "senses": [
    {
      "categories": [
        "Plantkunde_in_het_Xhosa"
      ],
      "glosses": [
        "boom"
      ],
      "topics": [
        "botany"
      ]
    },
    {
      "glosses": [
        "bomen"
      ]
    }
  ],
  "word": "-thi"
}

{
  "categories": [
    "Werkwoord in het Xhosa",
    "Woorden in het Xhosa"
  ],
  "lang": "Xhosa",
  "lang_code": "xh",
  "pos": "verb",
  "pos_title": "Werkwoord",
  "senses": [
    {
      "glosses": [
        "zeggen"
      ]
    },
    {
      "glosses": [
        "leidt vaak een uitdrukking in met een ideofoon"
      ]
    }
  ],
  "word": "-thi"
}