Complex sentence: Antiptosis is a Greek word, which literally translates to "exchange of case", that is a type of enallage (the substitution of grammatically different but semantically equivalent constructions) in which a grammatical case is substituted for another.
Split into simpler sentences: Antiptosis is a Greek word, which literally translates to "exchange of case". It is a type of enallage (the substitution of grammatically different but semantically equivalent constructions) in which a grammatical case is substituted for another.