Definition: The word "adenoncus" does not have a clear, commonly understood meaning in English or any other language. It seems to be an old or historically unfamiliar term that has been used in various contexts but does not appear to have any known etymology. It is possible that this term was originally used as a colloquial expression or idiom and then evolved into its current usage over time, either through adoption of the term by speakers who were familiar with its historical use, or through some other form of change in English. It would be helpful to provide more context or information about the origin and usage of "adenoncus" if you can share that information. If "adenoncus" is a word or phrase from an ancient or historically unknown source, it might not have a standard definition or etymology in modern usage. If you are looking for a common term with a known meaning and history, you could look up the closest word to "adenoncus," such as "adonis," "admonition" or "adulthood."

adenoncus