"mercem" meaning in Latin

{
  "etymology_number": 1,
  "head_templates": [
    {
      "args": {
        "1": "la",
        "2": "noun form"
      },
      "expansion": "mercem",
      "name": "head"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "word": "merx"
        }
      ],
      "glosses": [
        "accusative singular of merx"
      ],
      "id": "en-mercem-la-noun-EKyITob1",
      "links": [
        [
          "merx",
          "merx#Latin"
        ]
      ],
      "tags": [
        "accusative",
        "form-of",
        "singular"
      ]
    }
  ],
  "word": "mercem"
}

{
  "etymology_number": 2,
  "head_templates": [
    {
      "args": {
        "1": "la",
        "2": "verb form"
      },
      "expansion": "mercem",
      "name": "head"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "_dis": "19 81",
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "10 90",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "7 93",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "word": "mercō"
        }
      ],
      "glosses": [
        "first-person singular present active subjunctive of mercō"
      ],
      "id": "en-mercem-la-verb-YjKi28B4",
      "links": [
        [
          "mercō",
          "merco#Latin"
        ]
      ],
      "tags": [
        "active",
        "first-person",
        "form-of",
        "present",
        "singular",
        "subjunctive"
      ]
    }
  ],
  "word": "mercem"
}

{
  "categories": [
    "Latin entries with incorrect language header",
    "Latin non-lemma forms",
    "Latin noun forms",
    "Latin verb forms",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "etymology_number": 1,
  "head_templates": [
    {
      "args": {
        "1": "la",
        "2": "noun form"
      },
      "expansion": "mercem",
      "name": "head"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "word": "merx"
        }
      ],
      "glosses": [
        "accusative singular of merx"
      ],
      "links": [
        [
          "merx",
          "merx#Latin"
        ]
      ],
      "tags": [
        "accusative",
        "form-of",
        "singular"
      ]
    }
  ],
  "word": "mercem"
}

{
  "categories": [
    "Latin entries with incorrect language header",
    "Latin non-lemma forms",
    "Latin verb forms",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "etymology_number": 2,
  "head_templates": [
    {
      "args": {
        "1": "la",
        "2": "verb form"
      },
      "expansion": "mercem",
      "name": "head"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "verb",
  "senses": [
    {
      "form_of": [
        {
          "word": "mercō"
        }
      ],
      "glosses": [
        "first-person singular present active subjunctive of mercō"
      ],
      "links": [
        [
          "mercō",
          "merco#Latin"
        ]
      ],
      "tags": [
        "active",
        "first-person",
        "form-of",
        "present",
        "singular",
        "subjunctive"
      ]
    }
  ],
  "word": "mercem"
}