* It's a very niche term: It might be specific to a particular academic discipline, a small research group, or even a proprietary system. Without more context, it's impossible to say what it means.
* It's a misspelling or misunderstanding: Perhaps you're thinking of a similar-sounding term or concept. Could you provide more context about where you encountered this phrase? Knowing the source would help clarify its meaning.
* It's a newly coined term: It's possible someone recently created this term. If so, you'd need to find the source that defines it.
Please provide more information so I can help you understand what "kappa preceder" refers to.