"-sis" meaning in English

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      "name": "der"
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  "etymology_text": "Ultimately from Ancient Greek -σις (-sis, “forms noun of action”), often via Latin or French. Identical in meaning with Latin -entia, English -ing.",
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    {
      "form": "-ses",
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  "lang_code": "en",
  "pos": "suffix",
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        {
          "text": "catharsis, dialysis, diagnosis, crisis"
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        "forming nouns of action or process"
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        "(medicine) forming nouns of condition"
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      "examples": [
        {
          "text": "basis, oasis, thesis, stasis"
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      "id": "en--sis-en-suffix-jI7bcOyU",
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      "expansion": "Ancient Greek -σις (-sis, “forms noun of action”)",
      "name": "der"
    }
  ],
  "etymology_text": "Ultimately from Ancient Greek -σις (-sis, “forms noun of action”), often via Latin or French. Identical in meaning with Latin -entia, English -ing.",
  "forms": [
    {
      "form": "-ses",
      "tags": [
        "plural"
      ]
    }
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  "lang_code": "en",
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    {
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        {
          "text": "catharsis, dialysis, diagnosis, crisis"
        }
      ],
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      ],
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        "morpheme"
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    },
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        {
          "text": "psoriasis, sepsis, tuberculosis, psychosis"
        }
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        "forming nouns of condition"
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        "sciences"
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