"ep-" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "ἐπί",
        "4": "",
        "5": "on top of"
      },
      "expansion": "Ancient Greek ἐπί (epí, “on top of”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek ἐπί (epí, “on top of”).",
  "forms": [
    {
      "form": "epi-",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ep-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "on top of, above",
          "word": "epi-"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of epi- (“on top of, above”)."
      ],
      "id": "en-ep--en-prefix-xZefX2VY",
      "links": [
        [
          "epi-",
          "epi-#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "morpheme"
      ]
    }
  ],
  "word": "ep-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "ἐπί",
        "4": "",
        "5": "on top of"
      },
      "expansion": "Ancient Greek ἐπί (epí, “on top of”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek ἐπί (epí, “on top of”).",
  "forms": [
    {
      "form": "epi-",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ep-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "on top of, above",
          "word": "epi-"
        }
      ],
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English prefixes",
        "English terms derived from Ancient Greek",
        "Pages using catfix",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Alternative form of epi- (“on top of, above”)."
      ],
      "links": [
        [
          "epi-",
          "epi-#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "morpheme"
      ]
    }
  ],
  "word": "ep-"
}