Sentence:  He [Coleridge] establishes an opposition between Σύνταξις ῥημάτων or ῥηματική ("<WSD>rhematic</WSD>"), the art of joining words into sentences, and γραμματική ("grammar"), which in its derivation from γράμμα (a letter, written character) is the art of joining letters together, spelling. Or, cf "CN" <small>IV</small> 4771: "Grammar [is] the scheme & instrument of connecting words significantly, the Meta-grammatic <<WSD>rhematic</WSD>>, the Doctrine of arranging words perspicuously" ... 
Meaning of the word marked with <WSD> tags:  In the work of (Samuel Taylor Coleridge) (1772–1834): the doctrine or study of arranging words into sentences clearly.