"ti-" meaning in Esperanto

{
  "etymology_text": "Demonstratives of European languages in t, such as English (this, that, there, thus, then), French (tel, tant), Polish (ten), Russian (те, то, так, там, такой, тогда). Note also German (dies, den).",
  "head_templates": [
    {
      "args": {
        "1": "eo",
        "2": "prefix"
      },
      "expansion": "ti-",
      "name": "head"
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 10 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "english": "for that reason, therefore",
          "word": "tial"
        },
        {
          "english": "then",
          "word": "tiam"
        },
        {
          "english": "such (a)",
          "word": "tia"
        },
        {
          "english": "thus, that way",
          "word": "tiel"
        },
        {
          "english": "that one's, those ones",
          "word": "ties"
        },
        {
          "english": "that place, there",
          "word": "tie"
        },
        {
          "english": "that much",
          "word": "tiom"
        },
        {
          "english": "that (without a noun); those; plural tioj ()",
          "word": "tio"
        },
        {
          "english": "that one, that/those (with a noun); those ones; plural tiuj ()",
          "word": "tiu"
        }
      ],
      "glosses": [
        "this-, that-. (Demonstrative correlative prefix.)"
      ],
      "id": "en-ti--eo-prefix-9S8hIuUm",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "ti-"
}

{
  "derived": [
    {
      "english": "for that reason, therefore",
      "word": "tial"
    },
    {
      "english": "then",
      "word": "tiam"
    },
    {
      "english": "such (a)",
      "word": "tia"
    },
    {
      "english": "thus, that way",
      "word": "tiel"
    },
    {
      "english": "that one's, those ones",
      "word": "ties"
    },
    {
      "english": "that place, there",
      "word": "tie"
    },
    {
      "english": "that much",
      "word": "tiom"
    },
    {
      "english": "that (without a noun); those; plural tioj ()",
      "word": "tio"
    },
    {
      "english": "that one, that/those (with a noun); those ones; plural tiuj ()",
      "word": "tiu"
    }
  ],
  "etymology_text": "Demonstratives of European languages in t, such as English (this, that, there, thus, then), French (tel, tant), Polish (ten), Russian (те, то, так, там, такой, тогда). Note also German (dies, den).",
  "head_templates": [
    {
      "args": {
        "1": "eo",
        "2": "prefix"
      },
      "expansion": "ti-",
      "name": "head"
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "Esperanto entries with incorrect language header",
        "Esperanto lemmas",
        "Esperanto prefixes",
        "Pages with 10 entries",
        "Pages with entries"
      ],
      "glosses": [
        "this-, that-. (Demonstrative correlative prefix.)"
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "ti-"
}