"со" meaning in Nivkh

{
  "forms": [
    {
      "form": "so",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "niv",
        "2": "mutated noun"
      },
      "expansion": "со (so)",
      "name": "head"
    }
  ],
  "lang": "Nivkh",
  "lang_code": "niv",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Nivkh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Ытиксо тух ӿумд.\nƏtikso tux humd.\nThe crucian carp lives in a lake.",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "extra": "(ț’o). Occurs after vowels and plosives.",
          "word": "чо"
        }
      ],
      "glosses": [
        "Lenited form of чо (ț’o). Occurs after vowels and plosives."
      ],
      "id": "en-со-niv-noun-Ipz4BxLe",
      "links": [
        [
          "чо",
          "чо#Nivkh"
        ],
        [
          "plosives",
          "plosives"
        ]
      ],
      "tags": [
        "form-of",
        "lenition"
      ]
    }
  ],
  "word": "со"
}

{
  "forms": [
    {
      "form": "so",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "niv",
        "2": "mutated noun"
      },
      "expansion": "со (so)",
      "name": "head"
    }
  ],
  "lang": "Nivkh",
  "lang_code": "niv",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Nivkh entries with incorrect language header",
        "Nivkh lenited forms",
        "Nivkh mutated nouns",
        "Nivkh non-lemma forms",
        "Nivkh terms with usage examples"
      ],
      "examples": [
        {
          "text": "Ытиксо тух ӿумд.\nƏtikso tux humd.\nThe crucian carp lives in a lake.",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "extra": "(ț’o). Occurs after vowels and plosives.",
          "word": "чо"
        }
      ],
      "glosses": [
        "Lenited form of чо (ț’o). Occurs after vowels and plosives."
      ],
      "links": [
        [
          "чо",
          "чо#Nivkh"
        ],
        [
          "plosives",
          "plosives"
        ]
      ],
      "tags": [
        "form-of",
        "lenition"
      ]
    }
  ],
  "word": "со"
}