icu4c/source/data/locales/es_SV.txt

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
// Generated using tools/cldr/cldr-to-icu/build-icu-data.xml
es_SV{
    %%Parent{"es_419"}
    fields{
        day{
            relative{
                "-2"{"antier"}
            }
        }
    }
}