Meaning

noun available source of wealth; a new or reserve supply that can be drawn upon when needed

noun a source of aid or support that may be drawn upon when needed

noun the ability to deal resourcefully with unusual problems

originBorrowed from Middle French ressource, from Old French resourse, resource (“a source, spring”), from resourdre, from Latin resurgō (“to rise again, spring up anew”). Equivalent to re- + source. See resourd, resurgent, source.

Etymology from Wiktionary, CC BY-SA 3.0