Dissociative Grammar names the phenomenon whereby the syntactic, morphological, and relational structures of language break down under the pressure of psychological dissociation — producing speech that is grammatically deviant, semantically fractured, or logically self-contradictory in ways that cannot be attributed to mere ignorance or carelessness. The depth-psychology corpus approaches this term from several converging directions. Bleuler provides the most clinically systematic account, cataloguing paragrammatisms, condensations, clang associations, and derailments of logical connectors in schizophrenic speech as surface expressions of underlying associative splitting; his 1911 taxonomy remains the foundational diagnostic reference. Giegerich reframes the problem philosophically, arguing that ordinary possessive constructions — ‘the human being who has such and such a psychology’ — themselves enact a dissociative grammar by grammatically sundering what is ontologically one. Jung’s word-association research supplies an experimental dimension, revealing how complex-constellated interference distorts grammatical form, reaction type, and predicative structure in measurable ways. Peterson’s Homeric analysis extends the inquiry to the patientive syntax of paschoō, tracing how particular grammatical positions encode the capacity for suffering and sedimentation of value. Taken together, the corpus treats dissociative grammar not merely as a symptom to be catalogued but as a structural index of the mind’s fragmentation — an argument written in syntax about the state of the soul.