"ku" meaning in Tocharian B

{
  "etymology_templates": [
    {
      "args": {
        "1": "txb",
        "2": "ine-toc-pro",
        "3": "*ku"
      },
      "expansion": "Proto-Tocharian *ku",
      "name": "inh"
    },
    {
      "args": {
        "1": "txb",
        "2": "ine-pro",
        "3": "*ḱwṓ",
        "t": "dog"
      },
      "expansion": "Proto-Indo-European *ḱwṓ (“dog”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "xto",
        "2": "ku"
      },
      "expansion": "Tocharian A ku",
      "name": "cog"
    },
    {
      "args": {
        "1": "la",
        "2": "canis"
      },
      "expansion": "Latin canis",
      "name": "cog"
    },
    {
      "args": {
        "1": "sga",
        "2": "cú"
      },
      "expansion": "Old Irish cú",
      "name": "cog"
    },
    {
      "args": {
        "1": "ang",
        "2": "hund"
      },
      "expansion": "Old English hund",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Tocharian *ku, from Proto-Indo-European *ḱwṓ (“dog”). Compare Tocharian A ku, Latin canis, Old Irish cú, Old English hund.",
  "head_templates": [
    {
      "args": {
        "1": "txb",
        "2": "noun",
        "g": "m"
      },
      "expansion": "ku m",
      "name": "head"
    }
  ],
  "lang": "Tocharian B",
  "lang_code": "txb",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 52 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Tocharian B entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "txb",
          "name": "Dogs",
          "orig": "txb:Dogs",
          "parents": [
            "Canids",
            "Carnivores",
            "Mammals",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "dog"
      ],
      "id": "en-ku-txb-noun-zWNX792W",
      "links": [
        [
          "dog",
          "dog"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "ku"
}

{
  "categories": [
    "Pages with 52 entries",
    "Pages with entries"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "txb",
        "2": "ine-toc-pro",
        "3": "*ku"
      },
      "expansion": "Proto-Tocharian *ku",
      "name": "inh"
    },
    {
      "args": {
        "1": "txb",
        "2": "ine-pro",
        "3": "*ḱwṓ",
        "t": "dog"
      },
      "expansion": "Proto-Indo-European *ḱwṓ (“dog”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "xto",
        "2": "ku"
      },
      "expansion": "Tocharian A ku",
      "name": "cog"
    },
    {
      "args": {
        "1": "la",
        "2": "canis"
      },
      "expansion": "Latin canis",
      "name": "cog"
    },
    {
      "args": {
        "1": "sga",
        "2": "cú"
      },
      "expansion": "Old Irish cú",
      "name": "cog"
    },
    {
      "args": {
        "1": "ang",
        "2": "hund"
      },
      "expansion": "Old English hund",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Tocharian *ku, from Proto-Indo-European *ḱwṓ (“dog”). Compare Tocharian A ku, Latin canis, Old Irish cú, Old English hund.",
  "head_templates": [
    {
      "args": {
        "1": "txb",
        "2": "noun",
        "g": "m"
      },
      "expansion": "ku m",
      "name": "head"
    }
  ],
  "lang": "Tocharian B",
  "lang_code": "txb",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 52 entries",
        "Pages with entries",
        "Tocharian B entries with incorrect language header",
        "Tocharian B lemmas",
        "Tocharian B masculine nouns",
        "Tocharian B nouns",
        "Tocharian B terms derived from Proto-Indo-European",
        "Tocharian B terms derived from Proto-Tocharian",
        "Tocharian B terms inherited from Proto-Indo-European",
        "Tocharian B terms inherited from Proto-Tocharian",
        "txb:Dogs"
      ],
      "glosses": [
        "dog"
      ],
      "links": [
        [
          "dog",
          "dog"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "ku"
}