Primarily used in legal documents, wills, and inheritances to describe what's left after specific distributions. The residuary clause in the will specified how to distribute remaining assets.
Pro Tip 2/3
After Others
It refers to the remainder after all other parts or shares have been allocated or given out. He received a watch, while I was named the residuary beneficiary.
Pro Tip 3/3
Not Primary
'Residuary' is not the first choice; it indicates what is available after the primary elements are dealt with. She got the family home, I got the residuary assets.