"pe" meaning in Tocharian A

{
  "etymology_templates": [
    {
      "args": {
        "1": "xto",
        "2": "ine-pro",
        "3": "*ped-"
      },
      "expansion": "",
      "name": "root"
    },
    {
      "args": {
        "1": "xto",
        "2": "ine-pro",
        "3": "*pṓds"
      },
      "expansion": "Proto-Indo-European *pṓds",
      "name": "inh"
    },
    {
      "args": {
        "1": "xto",
        "2": "peṃ"
      },
      "expansion": "peṃ",
      "name": "m"
    },
    {
      "args": {
        "1": "xto",
        "2": "ine-toc-pro",
        "3": "*peine",
        "g": "d"
      },
      "expansion": "Proto-Tocharian *peine du",
      "name": "inh"
    },
    {
      "args": {
        "1": "txb",
        "2": "paine"
      },
      "expansion": "Tocharian B paine",
      "name": "cog"
    },
    {
      "args": {
        "1": "ine-toc-pro",
        "2": "*pei"
      },
      "expansion": "*pei",
      "name": "m"
    },
    {
      "args": {
        "1": "xto",
        "2": "ine-pro",
        "3": "*pódh₁e",
        "g": "d"
      },
      "expansion": "Proto-Indo-European *pódh₁e du",
      "name": "inh"
    },
    {
      "args": {
        "1": "ine-pro",
        "2": "*pṓds"
      },
      "expansion": "*pṓds",
      "name": "m"
    },
    {
      "args": {
        "1": "txb",
        "2": "paiyye"
      },
      "expansion": "Tocharian B paiyye",
      "name": "cog"
    }
  ],
  "etymology_text": "Ultimately from Proto-Indo-European *pṓds. Compare the nominative/accusative dual form, peṃ, presumably from Proto-Tocharian *peine du (whence also Tocharian B paine), from an earlier *pei, from the Proto-Indo-European *pódh₁e du, from *pṓds. It is from this dual form in Proto-Tocharian that the singular forms have probably been analogically built. Compare Tocharian B paiyye.",
  "head_templates": [
    {
      "args": {
        "1": "xto",
        "2": "noun",
        "g": "m"
      },
      "expansion": "pe m",
      "name": "head"
    }
  ],
  "lang": "Tocharian A",
  "lang_code": "xto",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Tocharian A entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "foot"
      ],
      "id": "en-pe-xto-noun-IuT2kSpp",
      "links": [
        [
          "foot",
          "foot"
        ]
      ],
      "related": [
        {
          "word": "peṃ"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "pe"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "xto",
        "2": "ine-pro",
        "3": "*ped-"
      },
      "expansion": "",
      "name": "root"
    },
    {
      "args": {
        "1": "xto",
        "2": "ine-pro",
        "3": "*pṓds"
      },
      "expansion": "Proto-Indo-European *pṓds",
      "name": "inh"
    },
    {
      "args": {
        "1": "xto",
        "2": "peṃ"
      },
      "expansion": "peṃ",
      "name": "m"
    },
    {
      "args": {
        "1": "xto",
        "2": "ine-toc-pro",
        "3": "*peine",
        "g": "d"
      },
      "expansion": "Proto-Tocharian *peine du",
      "name": "inh"
    },
    {
      "args": {
        "1": "txb",
        "2": "paine"
      },
      "expansion": "Tocharian B paine",
      "name": "cog"
    },
    {
      "args": {
        "1": "ine-toc-pro",
        "2": "*pei"
      },
      "expansion": "*pei",
      "name": "m"
    },
    {
      "args": {
        "1": "xto",
        "2": "ine-pro",
        "3": "*pódh₁e",
        "g": "d"
      },
      "expansion": "Proto-Indo-European *pódh₁e du",
      "name": "inh"
    },
    {
      "args": {
        "1": "ine-pro",
        "2": "*pṓds"
      },
      "expansion": "*pṓds",
      "name": "m"
    },
    {
      "args": {
        "1": "txb",
        "2": "paiyye"
      },
      "expansion": "Tocharian B paiyye",
      "name": "cog"
    }
  ],
  "etymology_text": "Ultimately from Proto-Indo-European *pṓds. Compare the nominative/accusative dual form, peṃ, presumably from Proto-Tocharian *peine du (whence also Tocharian B paine), from an earlier *pei, from the Proto-Indo-European *pódh₁e du, from *pṓds. It is from this dual form in Proto-Tocharian that the singular forms have probably been analogically built. Compare Tocharian B paiyye.",
  "head_templates": [
    {
      "args": {
        "1": "xto",
        "2": "noun",
        "g": "m"
      },
      "expansion": "pe m",
      "name": "head"
    }
  ],
  "lang": "Tocharian A",
  "lang_code": "xto",
  "pos": "noun",
  "related": [
    {
      "word": "peṃ"
    }
  ],
  "senses": [
    {
      "categories": [
        "Tocharian A entries with incorrect language header",
        "Tocharian A lemmas",
        "Tocharian A masculine nouns",
        "Tocharian A nouns",
        "Tocharian A terms derived from Proto-Indo-European",
        "Tocharian A terms derived from Proto-Tocharian",
        "Tocharian A terms derived from the Proto-Indo-European root *ped-",
        "Tocharian A terms inherited from Proto-Indo-European",
        "Tocharian A terms inherited from Proto-Tocharian"
      ],
      "glosses": [
        "foot"
      ],
      "links": [
        [
          "foot",
          "foot"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "pe"
}