"trākäm" meaning in Tocharian B

{
  "etymology_templates": [
    {
      "args": {
        "1": "txb",
        "2": "grc",
        "3": "δραχμή"
      },
      "expansion": "Ancient Greek δραχμή (drakhmḗ)",
      "name": "der"
    }
  ],
  "etymology_text": "Ultimately from Ancient Greek δραχμή (drakhmḗ).",
  "head_templates": [
    {
      "args": {
        "1": "txb",
        "2": "noun",
        "g": "?",
        "head": ""
      },
      "expansion": "trākäm ?",
      "name": "head"
    },
    {
      "args": {
        "1": "",
        "2": "?"
      },
      "expansion": "trākäm ?",
      "name": "txb-noun"
    }
  ],
  "lang": "Tocharian B",
  "lang_code": "txb",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Tocharian B entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "txb",
          "name": "Units of measure",
          "orig": "txb:Units of measure",
          "parents": [
            "Metrology",
            "Quantity",
            "Applied sciences",
            "Mathematics",
            "Sciences",
            "Formal sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "drachma, dram (unit of weight)"
      ],
      "id": "en-trākäm-txb-noun-isFgajOy",
      "links": [
        [
          "drachma",
          "drachma"
        ],
        [
          "dram",
          "dram"
        ]
      ]
    }
  ],
  "word": "trākäm"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "txb",
        "2": "grc",
        "3": "δραχμή"
      },
      "expansion": "Ancient Greek δραχμή (drakhmḗ)",
      "name": "der"
    }
  ],
  "etymology_text": "Ultimately from Ancient Greek δραχμή (drakhmḗ).",
  "head_templates": [
    {
      "args": {
        "1": "txb",
        "2": "noun",
        "g": "?",
        "head": ""
      },
      "expansion": "trākäm ?",
      "name": "head"
    },
    {
      "args": {
        "1": "",
        "2": "?"
      },
      "expansion": "trākäm ?",
      "name": "txb-noun"
    }
  ],
  "lang": "Tocharian B",
  "lang_code": "txb",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Requests for gender in Tocharian B entries",
        "Tocharian B entries with incorrect language header",
        "Tocharian B lemmas",
        "Tocharian B nouns",
        "Tocharian B terms derived from Ancient Greek",
        "txb:Units of measure"
      ],
      "glosses": [
        "drachma, dram (unit of weight)"
      ],
      "links": [
        [
          "drachma",
          "drachma"
        ],
        [
          "dram",
          "dram"
        ]
      ]
    }
  ],
  "word": "trākäm"
}