There is an other related word-- (which M-W 10th refuses to list) so i am unsure of the spelling- perplum-- which is small ruffle like edge to a suit jacket-- (A woman suit jacket) (any other sewer/fashion mavens out there with the proper spelling.. or a URL with a sample photo?)

a fitted jacket that has a seam at the waist line, and a flaired ruffle hem is a perplum jacket-- the ruffle is not gathered, but flairs out like a circular skirt-- it is about 7 to 9 deep. The were popular in 50's.. but they are never totally unpopular. (the ruffle "sails" arround the hem)