metonymical

The word 'metonymical' is built upon the core concept of 'metonymy', a figure of speech originating in Greek rhetoric. Its first element, 'meta-', carries the sense of alteration or substitution, while '-onyma' derives from the Greek word for 'name'. Thus, the literal construction means "a change of name." The suffix '-ical' is a common English adjectival formant, indicating a quality or relation. Therefore, the etymological logic flows directly from the ancient Greek idea of substituting one name for a related concept into the modern English adjective describing that very rhetorical process.

Structure: metonym (metonymy) + ical (adjective suffix) - metonym: From Greek metōnymía (change of name), itself from meta- (expressing change) + -ōnyma (name, word). - ical: A compound adjectival suffix from English -ic (of or pertaining to) + -al (of the kind of).