n.
- a place, person, or thing from which something originates.
▸a spring or fountain head from which a river or stream issues.
- a person who provides information.
▸a book or document providing evidence for research.
- technical a body or process by which energy or a component enters a system. The opposite of sink2.
v.
obtain from a particular source.
▸find out where to obtain.
Phrase
- at source
at the point of origin or issue.
Etymology
ME: from OFr. sours(e), past part. of sourdre ‘to rise’, from L. surgere.