Primary source
Wellspring and primary source are semantically related in source topic. In some cases you can use "Wellspring" instead a noun phrase "Primary source".
Wellspring
Wellspring noun - A point or place at which something is invented or provided.
Primary source and wellspring are semantically related in source topic. You can use "Primary source" instead a noun "Wellspring".
Cite this Source
Wellspring and Primary source. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/primary_source/wellspring
Primary source & Wellspring. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/primary_source/wellspring>.
Wellspring or Primary source. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/primary_source/wellspring.
Google Ngram Viewer shows how "primary source" and "wellspring" have occurred on timeline