Plural or variant form referring to multiple instances or practitioners of witchcraft and hexing.
From German 'Hexerei' (witchcraft) with variant plural or inflectional suffix '-s'. This appears to be a less common pluralization or regional variant of hexerei.
Variant word forms like this one highlight how folklore terms evolve differently across regions—the same magical practices got different names and plural forms depending on whether they were in Germany, Pennsylvania, or Appalachia.
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