Lexeme-Morpheme Base Morphology (LMBM)

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http://www.bucknell.edu/~rbeard/

The LMBM lexicon is exclusively the domain of lexemes which are defined specifically as noun, verb, and adjective stems and the lexical categories which define them (Number, Gender, Transitivity, and so on). LMBM distinguishes itself from other lexeme-based theories in that it maintains a pristine distinction between lexemes and grammatical morphemes and consequently predicts this distinction at every level of language and speech.