The paper aims to evaluate the semantic -terminological effect on the use of the Latin lexicon that are shaped by a particular author, given the complete documentation of the occurrences of his lemmata (Index Thomisticus), further supplied by on-going syntactic annotation, but nevertheless requiring proper, theoretically well-founded semantic analysis and lexicographic production. We propose linking the rich theoretical tradition which has produced the Prague Dependency Treebank (PDT) and the correlated Tectogrammatical Annotation (TGA) to the objectives of the Bicultural Thomistic Lexicon (LTB). To do this, we will examine and discuss Havrnek's contribution to the shaping of standard language, especially through the distinctive, creative procedure he calls intellectualisation. At the same time, we will outline the effect determined by the use -established in all its extensions -of an expression (lexical item or noun phrase). Given that the user -Thomas Aquinas -was an author who profoundly influenced subsequent thought, the creation or codification of a terminological value of the item will be investigated.