Onset
Onset noun - The point at which something begins.
Usage example: the claim that if you take enough vitamin C at the onset of a cold, you'll often recover faster
Source
Source noun - A point or place at which something is invented or provided.
Usage example: a source of inspiration
Mutual synonyms
Cite this Source
Source and Onset. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/onset/source
Onset & Source. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/onset/source>.
Source or Onset. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/onset/source.
Google Ngram Viewer shows how "onset" and "source" have occurred on timeline