"es-" meaning in Old French

{
  "descendants": [
    {
      "lang": "French",
      "lang_code": "fr",
      "word": "é-"
    }
  ],
  "etymology_links": [
    [
      "ex-",
      "ex-#Latin"
    ]
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "fro",
        "2": ":inh",
        "3": "la:ex-"
      },
      "expansion": "[Appendix:Glossary#inherited|Inherited]] from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-Italic\", \"term\" : \"*eks\", \"status\" : \"ok\", \"lang\" : \"itc-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"ex\", \"lang\" : \"la\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"lang_name\" : \"Latin\", \"term\" : \"ex-\", \"status\" : \"ok\", \"lang\" : \"la\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Old French\", \"term\" : \"es-\", \"status\" : \"ok\", \"lang\" : \"fro\" }\" data-lang=\"fro\" data-title=\"es-\">",
      "name": "etymon"
    },
    {
      "args": {
        "1": "fro",
        "2": "la",
        "3": "ex-"
      },
      "expansion": "Latin ex-",
      "name": "inh"
    }
  ],
  "etymology_text": "From Latin ex-.",
  "head_templates": [
    {
      "args": {
        "1": "fro",
        "2": "prefix"
      },
      "expansion": "es-",
      "name": "head"
    }
  ],
  "lang": "Old French",
  "lang_code": "fro",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "_dis": "12 5 12 1 14 14 14 14 14",
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "12 5 12 1 14 14 14 13 14",
          "kind": "other",
          "name": "Pages with 14 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "12 8 12 1 14 14 14 13 14",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "94 6",
          "kind": "other",
          "name": "Old French entries with etymon",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "70 30",
          "kind": "other",
          "name": "Old French entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "14 1 18 18 18 16 18",
          "kind": "other",
          "name": "Pages using etymon with no ID",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "14 1 18 18 18 16 18",
          "kind": "other",
          "name": "Pages with etymon",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "indicates movement away or separation"
      ],
      "id": "en-es--fro-prefix-P0zxwwBy",
      "tags": [
        "morpheme"
      ]
    },
    {
      "alt_of": [
        {
          "word": "a-"
        }
      ],
      "glosses": [
        "variant of a-"
      ],
      "id": "en-es--fro-prefix-iS4kIQOJ",
      "links": [
        [
          "a-",
          "a-#Old_French"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "morpheme"
      ]
    }
  ],
  "word": "es-"
}

{
  "categories": [
    "Old French entries with etymon",
    "Old French entries with incorrect language header",
    "Old French lemmas",
    "Old French prefixes",
    "Old French terms derived from Latin",
    "Old French terms derived from Proto-Indo-European",
    "Old French terms derived from Proto-Italic",
    "Old French terms derived from the Proto-Indo-European word *h₁éǵʰ",
    "Old French terms derived from the Proto-Indo-European word *h₁éǵʰs",
    "Old French terms inherited from Latin",
    "Old French terms inherited from Proto-Indo-European",
    "Old French terms inherited from Proto-Italic",
    "Pages using catfix",
    "Pages using etymon with no ID",
    "Pages with 14 entries",
    "Pages with entries",
    "Pages with etymon"
  ],
  "descendants": [
    {
      "lang": "French",
      "lang_code": "fr",
      "word": "é-"
    }
  ],
  "etymology_links": [
    [
      "ex-",
      "ex-#Latin"
    ]
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "fro",
        "2": ":inh",
        "3": "la:ex-"
      },
      "expansion": "[Appendix:Glossary#inherited|Inherited]] from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-Italic\", \"term\" : \"*eks\", \"status\" : \"ok\", \"lang\" : \"itc-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"ex\", \"lang\" : \"la\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"lang_name\" : \"Latin\", \"term\" : \"ex-\", \"status\" : \"ok\", \"lang\" : \"la\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Old French\", \"term\" : \"es-\", \"status\" : \"ok\", \"lang\" : \"fro\" }\" data-lang=\"fro\" data-title=\"es-\">",
      "name": "etymon"
    },
    {
      "args": {
        "1": "fro",
        "2": "la",
        "3": "ex-"
      },
      "expansion": "Latin ex-",
      "name": "inh"
    }
  ],
  "etymology_text": "From Latin ex-.",
  "head_templates": [
    {
      "args": {
        "1": "fro",
        "2": "prefix"
      },
      "expansion": "es-",
      "name": "head"
    }
  ],
  "lang": "Old French",
  "lang_code": "fro",
  "pos": "prefix",
  "senses": [
    {
      "glosses": [
        "indicates movement away or separation"
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "alt_of": [
        {
          "word": "a-"
        }
      ],
      "glosses": [
        "variant of a-"
      ],
      "links": [
        [
          "a-",
          "a-#Old_French"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "morpheme"
      ]
    }
  ],
  "word": "es-"
}