quintile

noun

1. Any of the quantiles which divide an ordered sample population into five equally numerous subsets.
2. (broadly)A subset thus obtained.

   “Effectively no household making less than $28,000 will pay federal income tax – usually about 15% of the bottom income quintile has some tax liability.”

   ““It’s well known that the lowest income consumer is really struggling with inflation, but from a purely economic standpoint, it is the higher quintiles of earners that do the most spending,” Nanette Abuhoff Jacobson, global investment strategist at Hartford Funds, told CNN.”

3. An aspect of planets that are distant from each other by one fifth of a zodiac (72°)

name

1. (alt-of, alternative, historical, obsolete)Alternative form of Quintilis: the former Roman name of the month July.