Here is a semantic taxonomy tree in .md format, organizing all known and proposed -seme terms by field:

Taxonomy of -seme Units in Linguistics and Semiotics

The suffix -seme indicates semantic units — building blocks of meaning, ranging from abstract features to culturally contextualized signs.

I. Core Semantic Units (General Semantics)

• Sememe

  • Minimal unit of meaning (like a morpheme in morphology)

• Pleseme

  • A sememe carrying emotive or stylistic nuance
    
  • Related to connotation or affective semantics

• Episeme

  • Context-dependent or culturally-specific sememe
    
  • Found in anthropological or ethnolinguistic semantics

II. Cognitive and Mental Semantics

• Nooseme

  • Unit of cognitive meaning (from noos, "mind")
    
  • Used in cognitive linguistics or mentalist theories

• Lexiseme (less common)

  • Proposed unit representing the meaning of a lexical item
    
  • Used when distinguishing between lexical and grammatical meaning

III. Pragmatics and Communication

• Pragmatoseme
  
  • A sememe that emerges in pragmatic contexts
    
  • Includes speaker intention, implication, conversational meaning

IV. Narrative and Cultural Semiotics

• Narratoseme

  • A basic unit of meaning in narrative structures
    
  • Used in semiotic models of storytelling (e.g., Propp, Greimas)

• Mythoseme

  • Semantic unit in myth analysis
    
  • Related to structuralist anthropology (e.g., Lévi-Strauss)

Visual Hierarchy (Textual Tree)

Semantic Units (-semes)
├── Core Semantics
│ ├── Sememe
│ ├── Pleseme
│ └── Episeme
├── Cognitive Semantics
│ ├── Nooseme
│ └── Lexiseme
├── Pragmatics
│ └── Pragmatoseme
└── Semiotic Structures
├── Narratoseme
└── Mythoseme

Notes

• Sememe is the foundational unit.
• Some terms are framework-specific, rarely used outside those schools (e.g., Mythoseme, Nooseme).
• This taxonomy helps track how meaning is constructed, contextualized, and interpreted across disciplines.

Let me know if you want this integrated with your earlier -eme taxonomy (e.g., phoneme, morpheme, grapheme, tagmeme).