ζ instead of ξ

Attestations in Trismegistos Text irregularities

This text irregularity has been corrected by a modern editor 5 time(s) in Trismegistos Text irregularities;
   in 5 different contexts (before and after);
       following 3 different groups;
       preceding 5 different groups.

Less than 10 attestations. For a network of text irregularities based on co-occurrence in the same text, see here

Contexts of this text irregularity (ζ instead of ξ)
Context	Frequency
after ∅ and before ε	1	(all types of errors in this context)
after ∅ and before υ	1	(all types of errors in this context)
after ∅ and before ω	1	(all types of errors in this context)
after ε and before η	1	(all types of errors in this context)
after ρ and before β	1	(all types of errors in this context)

Graphemes preceding this text irregularity (ζ instead of ξ)
Context	Frequency
after ∅	3	(all types of errors in this context)
after ε	1	(all types of errors in this context)
after ρ	1	(all types of errors in this context)

Graphemes following this text irregularity (ζ instead of ξ)
Context	Frequency
before β	1	(all types of errors in this context)
before ε	1	(all types of errors in this context)
before η	1	(all types of errors in this context)
before υ	1	(all types of errors in this context)
before ω	1	(all types of errors in this context)