This text presents a profound etymological and semantic analysis of the archaic Old Czech verb "pravditi" within the broader context of its historical, philosophical, and linguistic origins. The author focuses on exploring the parallels between the Greek expression "alétheyein" and the Latin "verare", which may have served as a direct model for the Czech term expressing the specific act of speaking truthfully. The meaning of the now-obsolete word "pravditi" is closely linked to the common modern Czech verb "praviti" (to say), which in the past carried a potent performative weight, particularly in the sense of the solemn declaration of law or truth within legal and social frameworks. Furthermore, the document analyzes the Latin term "veridicus" as a designation for a truth-telling individual and compares constructions like "verum dicere" with more conceptually structured linguistic forms. This reflection illuminates archaic layers of language where truth was perceived not merely as an abstract logical category but as a concrete, dynamic act of "truthing" through the Word. The analysis reveals the intrinsic ties between law, truth, and the act of speech in pre-modern thought, where the spoken word functioned as a binding and undeniable public declaration.