great wealth; very wealthy person
Idiomatic expression referring to immense riches or a person of enormous wealth, derived from the names of two legendary Chinese merchants. Rare and literary; used in classical or rhetorical contexts.
He is said to have built a fortune rivaling that of Tōshu and Iton in a single generation.
From the names of Tōshu (陶朱) and Iton (猗頓), two legendary wealthy merchants in ancient China. The phrase literally means 'the wealth of Tōshu and Iton' and is used idiomatically to describe immense riches.