"-ko" meaning in Lower Sorbian

{
  "etymology_templates": [
    {
      "args": {
        "1": "dsb",
        "2": "sla-pro",
        "3": "*-ъko"
      },
      "expansion": "Proto-Slavic *-ъko",
      "name": "inh"
    }
  ],
  "etymology_text": "From Proto-Slavic *-ъko.",
  "head_templates": [
    {
      "args": {
        "1": "dsb",
        "2": "suffix",
        "cat2": "diminutive suffixes",
        "cat3": "noun-forming suffixes",
        "g": "n"
      },
      "expansion": "-ko n",
      "name": "head"
    }
  ],
  "lang": "Lower Sorbian",
  "lang_code": "dsb",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lower Sorbian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 17 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "added to neuter nouns to form a diminutive"
      ],
      "id": "en--ko-dsb-suffix-esRi-6dR",
      "tags": [
        "morpheme",
        "neuter"
      ]
    }
  ],
  "word": "-ko"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "dsb",
        "2": "sla-pro",
        "3": "*-ъko"
      },
      "expansion": "Proto-Slavic *-ъko",
      "name": "inh"
    }
  ],
  "etymology_text": "From Proto-Slavic *-ъko.",
  "head_templates": [
    {
      "args": {
        "1": "dsb",
        "2": "suffix",
        "cat2": "diminutive suffixes",
        "cat3": "noun-forming suffixes",
        "g": "n"
      },
      "expansion": "-ko n",
      "name": "head"
    }
  ],
  "lang": "Lower Sorbian",
  "lang_code": "dsb",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Lower Sorbian diminutive suffixes",
        "Lower Sorbian entries with incorrect language header",
        "Lower Sorbian lemmas",
        "Lower Sorbian neuter suffixes",
        "Lower Sorbian noun-forming suffixes",
        "Lower Sorbian suffixes",
        "Lower Sorbian terms derived from Proto-Slavic",
        "Lower Sorbian terms inherited from Proto-Slavic",
        "Pages using catfix",
        "Pages with 17 entries",
        "Pages with entries"
      ],
      "glosses": [
        "added to neuter nouns to form a diminutive"
      ],
      "tags": [
        "morpheme",
        "neuter"
      ]
    }
  ],
  "word": "-ko"
}