"tantummodo" meaning in Latin

{
  "etymology_templates": [
    {
      "args": {
        "1": "la",
        "2": "tantum",
        "3": "modo"
      },
      "expansion": "tantum + modo",
      "name": "compound"
    }
  ],
  "etymology_text": "tantum + modo",
  "head_templates": [
    {
      "args": {
        "1": "tantummodo",
        "2": "-"
      },
      "expansion": "tantummodo (not comparable)",
      "name": "la-adv"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "only, merely"
      ],
      "id": "en-tantummodo-la-adv-JNLd-Q4V",
      "links": [
        [
          "only",
          "only"
        ],
        [
          "merely",
          "merely"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[tanˈtʊm.mɔ.dɔ]",
      "tags": [
        "Classical-Latin"
      ]
    },
    {
      "ipa": "[t̪an̪ˈt̪um.mo.d̪o]",
      "note": "modern Italianate Ecclesiastical"
    }
  ],
  "word": "tantummodo"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "la",
        "2": "tantum",
        "3": "modo"
      },
      "expansion": "tantum + modo",
      "name": "compound"
    }
  ],
  "etymology_text": "tantum + modo",
  "head_templates": [
    {
      "args": {
        "1": "tantummodo",
        "2": "-"
      },
      "expansion": "tantummodo (not comparable)",
      "name": "la-adv"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Latin 4-syllable words",
        "Latin adverbs",
        "Latin compound terms",
        "Latin entries with incorrect language header",
        "Latin lemmas",
        "Latin terms with IPA pronunciation",
        "Latin uncomparable adverbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "only, merely"
      ],
      "links": [
        [
          "only",
          "only"
        ],
        [
          "merely",
          "merely"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[tanˈtʊm.mɔ.dɔ]",
      "tags": [
        "Classical-Latin"
      ]
    },
    {
      "ipa": "[t̪an̪ˈt̪um.mo.d̪o]",
      "note": "modern Italianate Ecclesiastical"
    }
  ],
  "word": "tantummodo"
}