"-чь" meaning in Russian

{
  "etymology_links": [
    [
      "*-ťi",
      "Reconstruction:Proto-Slavic/-ťi"
    ]
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "",
        "2": "i",
        "3": "I"
      },
      "expansion": "I",
      "name": "yesno"
    },
    {
      "args": {
        "1": "Inherited"
      },
      "expansion": "Inherited",
      "name": "glossary"
    },
    {
      "args": {
        "1": "ru",
        "2": "sla-pro",
        "3": "*-ťi",
        "4": "",
        "5": "",
        "g": "",
        "g2": "",
        "g3": "",
        "id": "",
        "lit": "",
        "nocat": "",
        "pos": "",
        "sc": "",
        "sort": "",
        "tr": "",
        "ts": ""
      },
      "expansion": "Proto-Slavic *-ťi",
      "name": "inh"
    },
    {
      "args": {
        "1": "ru",
        "2": "sla-pro",
        "3": "*-ťi"
      },
      "expansion": "Inherited from Proto-Slavic *-ťi",
      "name": "inh+"
    }
  ],
  "etymology_text": "Inherited from Proto-Slavic *-ťi, from earlier *-kti.",
  "forms": [
    {
      "form": "-čʹ",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "suffix",
        "cat2": "inflectional suffixes"
      },
      "expansion": "-чь • (-čʹ)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Entries with collapsible category trees for nonexistent categories",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "The infinitive ending of some Russian verbs whose root ends in /k/ or /g/."
      ],
      "id": "en--чь-ru-suffix-lmQEaNwu",
      "related": [
        {
          "roman": "-atʹ",
          "word": "-ать"
        },
        {
          "roman": "-jatʹ",
          "word": "-ять"
        },
        {
          "roman": "-etʹ",
          "word": "-еть"
        },
        {
          "roman": "-itʹ",
          "word": "-ить"
        },
        {
          "roman": "-tʹ",
          "word": "-ть"
        },
        {
          "roman": "-ti",
          "word": "-ти"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-чь"
}

{
  "etymology_links": [
    [
      "*-ťi",
      "Reconstruction:Proto-Slavic/-ťi"
    ]
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "",
        "2": "i",
        "3": "I"
      },
      "expansion": "I",
      "name": "yesno"
    },
    {
      "args": {
        "1": "Inherited"
      },
      "expansion": "Inherited",
      "name": "glossary"
    },
    {
      "args": {
        "1": "ru",
        "2": "sla-pro",
        "3": "*-ťi",
        "4": "",
        "5": "",
        "g": "",
        "g2": "",
        "g3": "",
        "id": "",
        "lit": "",
        "nocat": "",
        "pos": "",
        "sc": "",
        "sort": "",
        "tr": "",
        "ts": ""
      },
      "expansion": "Proto-Slavic *-ťi",
      "name": "inh"
    },
    {
      "args": {
        "1": "ru",
        "2": "sla-pro",
        "3": "*-ťi"
      },
      "expansion": "Inherited from Proto-Slavic *-ťi",
      "name": "inh+"
    }
  ],
  "etymology_text": "Inherited from Proto-Slavic *-ťi, from earlier *-kti.",
  "forms": [
    {
      "form": "-čʹ",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "suffix",
        "cat2": "inflectional suffixes"
      },
      "expansion": "-чь • (-čʹ)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "suffix",
  "related": [
    {
      "roman": "-atʹ",
      "word": "-ать"
    },
    {
      "roman": "-jatʹ",
      "word": "-ять"
    },
    {
      "roman": "-etʹ",
      "word": "-еть"
    },
    {
      "roman": "-itʹ",
      "word": "-ить"
    },
    {
      "roman": "-tʹ",
      "word": "-ть"
    },
    {
      "roman": "-ti",
      "word": "-ти"
    }
  ],
  "senses": [
    {
      "categories": [
        "Entries with collapsible category trees for nonexistent categories",
        "Pages using catfix",
        "Pages with 1 entry",
        "Pages with entries",
        "Russian entries with incorrect language header",
        "Russian inflectional suffixes",
        "Russian lemmas",
        "Russian suffixes",
        "Russian terms derived from Proto-Slavic",
        "Russian terms inherited from Proto-Slavic"
      ],
      "glosses": [
        "The infinitive ending of some Russian verbs whose root ends in /k/ or /g/."
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-чь"
}