Abstract
The expressions klísis onomátōn and rhēmátōn refer to noun and verb inflection, namely the modifications a part of speech endowed with case and a verb can undergo. An overview of the elements involved in inflection is found in the Tékhnē grammatikḗ attributed to Dionysius Thrax: the noun is characterized by gender, number and case; the verb has moods, voices, numbers, persons, tenses. The most ancient reflection, starting from Aristotle and, subsequently, Stoic philosophy, the Hellenistic sch…