"-ko" meaning in Old Polish

{
  "descendants": [
    {
      "lang": "Polish",
      "lang_code": "pl",
      "word": "-ko"
    },
    {
      "lang": "Silesian",
      "lang_code": "szl",
      "word": "-ko"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": ":inh",
        "3": "sla-pro:*-ъko<id:suffix>",
        "id": "nominal",
        "text": "+",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Slavic *-ъko\nOld Polish -ko\nInherited from Proto-Slavic *-ъko.",
      "name": "etymon"
    }
  ],
  "etymology_text": "Etymology tree\nProto-Slavic *-ъko\nOld Polish -ko\nInherited from Proto-Slavic *-ъko.",
  "head_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": "suffix",
        "g": "n"
      },
      "expansion": "-ko n",
      "name": "head"
    }
  ],
  "lang": "Old Polish",
  "lang_code": "zlw-opl",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Polish entries referencing missing etymons",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Polish entries with etymology texts",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Polish entries with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Polish entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 19 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with etymology trees",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "diminutive suffix for neuter nouns; may cause various vowel shifts"
      ],
      "id": "en--ko-zlw-opl-suffix-YzTOhib8",
      "tags": [
        "morpheme",
        "neuter"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kɔ/",
      "note": "10ᵗʰ–15ᵗʰ CE"
    },
    {
      "ipa": "/kɔ/",
      "note": "15ᵗʰ CE"
    }
  ],
  "word": "-ko"
}

{
  "descendants": [
    {
      "lang": "Polish",
      "lang_code": "pl",
      "word": "-ko"
    },
    {
      "lang": "Silesian",
      "lang_code": "szl",
      "word": "-ko"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": ":inh",
        "3": "sla-pro:*-ъko<id:suffix>",
        "id": "nominal",
        "text": "+",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Slavic *-ъko\nOld Polish -ko\nInherited from Proto-Slavic *-ъko.",
      "name": "etymon"
    }
  ],
  "etymology_text": "Etymology tree\nProto-Slavic *-ъko\nOld Polish -ko\nInherited from Proto-Slavic *-ъko.",
  "head_templates": [
    {
      "args": {
        "1": "zlw-opl",
        "2": "suffix",
        "g": "n"
      },
      "expansion": "-ko n",
      "name": "head"
    }
  ],
  "lang": "Old Polish",
  "lang_code": "zlw-opl",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Old Polish entries referencing missing etymons",
        "Old Polish entries with etymology texts",
        "Old Polish entries with etymology trees",
        "Old Polish entries with incorrect language header",
        "Old Polish lemmas",
        "Old Polish neuter suffixes",
        "Old Polish suffixes",
        "Old Polish terms derived from Proto-Slavic",
        "Old Polish terms inherited from Proto-Slavic",
        "Old Polish terms with IPA pronunciation",
        "Pages using catfix",
        "Pages with 19 entries",
        "Pages with entries",
        "Pages with etymology trees"
      ],
      "glosses": [
        "diminutive suffix for neuter nouns; may cause various vowel shifts"
      ],
      "tags": [
        "morpheme",
        "neuter"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kɔ/",
      "note": "10ᵗʰ–15ᵗʰ CE"
    },
    {
      "ipa": "/kɔ/",
      "note": "15ᵗʰ CE"
    }
  ],
  "word": "-ko"
}