The purpose of the study is to present the terminology of word-formation synthesis as an organized system and identify the stages of development of its relevant terms. The scientific novelty of the study resides in the fact that a structured corpus of word-formation synthesis terms with elements of definitional analysis is introduced into scientific usage. As a result, it has been proven that the terminology of word-formation synthesis is a multilevel, hierarchically organized system, and the inventory of units within it changes at different stages of research. The system of modification synthesis terms is examined and tested with and through several proprietary novel web scraping algorithms that allow extracting the verbs of sound from digital databases of contemporary dictionaries and the National Corpus of the Russian language.