The inactivity of Watson is only to be accounted for by his total ignorance of the resourceless state of Marion's rifles.
He knew not what to say or do, but gazed in resourceless suspense at the strange figure she made.
1610s, "means of supplying a want or deficiency," from French resourse "a source, spring," noun use of fem. past participle of Old French resourdre "to rally, raise again," from Latin resurgere "rise again" (see resurgent). Resources "a country's wealth" first recorded 1779.
1975, from resource (n.). Related: Resourced; resourcing.