Lexicalization
In psycholinguistics, lexicalisation is the process of going from meaning to sound in speech production.
The most widely accepted model, speech production, in which an underlying concept is converted into a word, is at least a two-stage process. First, the semantic form (which is specified for meaning) is converted into a lemma, which is an abstract form specified for semantic and syntactic information (how a word can be used in a sentence), but not for phonological information (how a word is pronounced). The next stage is the lexeme, which is phonologically specified.[1]
Some recent work has challenged this model, suggesting for example that there is no lemma stage, and that syntactic information is retrieved in the semantic and phonological stages.[2]