Where does “shore” come from?

I need to clarify an issue with this request. The chain provided traces "score" (Old Norse skor, Proto-Germanic skurō), but the headword is "shore" with unknown meaning. These are different words with different etymologies. I cannot write an accurate etymology sentence because: 1. The chain doesn't match the headword 2. The meaning is listed as unknown, so I cannot "weave in the oldest one to explain the sense development" Could you provide: - The correct etymological chain for "shore," OR - Clarification on which word (score or shore) needs the etymology, AND - The known meaning for that word?

shore (English): Land adjoining a non-flowing body of water, such...