What is "pamida"

Pamida was a chain of department stores with more than 175 locations in 16 Midwestern and West Central U.S. states. Pamida stores were generally located in smaller communities that range from 3,000 to 8,000 in population. The Pamida name represents the first two letters of the first names of co-founder D. J. (Jim) Witherspoon's three sons: Pat, Mike, and David.