"mega-" meaning in Finnish

{
  "etymology_templates": [
    {
      "args": {
        "1": "fi",
        "2": "grc",
        "3": "μέγας",
        "4": "",
        "5": "great, large, mighty"
      },
      "expansion": "Ancient Greek μέγας (mégas, “great, large, mighty”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek μέγας (mégas, “great, large, mighty”).",
  "head_templates": [
    {
      "args": {
        "1": "fi",
        "2": "prefix",
        "head": ""
      },
      "expansion": "mega-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "mega-",
      "name": "fi-prefix"
    }
  ],
  "lang": "Finnish",
  "lang_code": "fi",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "_dis": "51 49",
          "kind": "topical",
          "langcode": "fi",
          "name": "SI units",
          "orig": "fi:SI units",
          "parents": [
            "Units of measure",
            "Metrology",
            "Quantity",
            "Applied sciences",
            "Mathematics",
            "Sciences",
            "Formal sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "mega-"
      ],
      "id": "en-mega--fi-prefix-WQ~VZXjM",
      "links": [
        [
          "mega-",
          "#English"
        ]
      ],
      "related": [
        {
          "_dis1": "98 2",
          "word": "kilo-"
        },
        {
          "_dis1": "98 2",
          "word": "giga-"
        }
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "categories": [
        {
          "_dis": "26 74",
          "kind": "other",
          "name": "Finnish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "24 76",
          "kind": "other",
          "name": "Finnish entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "19 81",
          "kind": "other",
          "name": "Finnish terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "51 49",
          "kind": "topical",
          "langcode": "fi",
          "name": "SI units",
          "orig": "fi:SI units",
          "parents": [
            "Units of measure",
            "Metrology",
            "Quantity",
            "Applied sciences",
            "Mathematics",
            "Sciences",
            "Formal sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "super-, extremely"
      ],
      "id": "en-mega--fi-prefix-5fkh36uS",
      "links": [
        [
          "super-",
          "super-"
        ],
        [
          "extremely",
          "extremely"
        ]
      ],
      "raw_glosses": [
        "(informal) super-, extremely"
      ],
      "tags": [
        "informal",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈmeɡɑ-/"
    },
    {
      "ipa": "[ˈme̞ɡɑ̝-]"
    }
  ],
  "word": "mega-"
}

{
  "categories": [
    "Finnish entries with incorrect language header",
    "Finnish entries with topic categories using raw markup",
    "Finnish lemmas",
    "Finnish prefixes",
    "Finnish terms derived from Ancient Greek",
    "Finnish terms with IPA pronunciation",
    "Finnish terms with non-redundant non-automated sortkeys",
    "fi:SI units"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "fi",
        "2": "grc",
        "3": "μέγας",
        "4": "",
        "5": "great, large, mighty"
      },
      "expansion": "Ancient Greek μέγας (mégas, “great, large, mighty”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek μέγας (mégas, “great, large, mighty”).",
  "head_templates": [
    {
      "args": {
        "1": "fi",
        "2": "prefix",
        "head": ""
      },
      "expansion": "mega-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "mega-",
      "name": "fi-prefix"
    }
  ],
  "lang": "Finnish",
  "lang_code": "fi",
  "pos": "prefix",
  "related": [
    {
      "word": "kilo-"
    },
    {
      "word": "giga-"
    }
  ],
  "senses": [
    {
      "glosses": [
        "mega-"
      ],
      "links": [
        [
          "mega-",
          "#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "categories": [
        "Finnish informal terms"
      ],
      "glosses": [
        "super-, extremely"
      ],
      "links": [
        [
          "super-",
          "super-"
        ],
        [
          "extremely",
          "extremely"
        ]
      ],
      "raw_glosses": [
        "(informal) super-, extremely"
      ],
      "tags": [
        "informal",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈmeɡɑ-/"
    },
    {
      "ipa": "[ˈme̞ɡɑ̝-]"
    }
  ],
  "word": "mega-"
}