Wellspring

(n.) A fountain; a spring; a source of continual supply.

Thesaurus Entries

bonanza, cornucopia, font, fount, fountain, fountainhead, gold mine, headspring, headstream, headwater, inception, lode, mainspring, mine, origin, provenance, provenience, quarry, resource, riverhead, root, source, source of supply, spring, springhead, staple, vein, well, wellhead