flymph n. a fishing lure resembling an insect between the nymph and fly stages of development. Etymological Note: Perhaps coined by and probably popularized by Vernon S. Hidy. (source: Double-Tongued Dictionary)
A Way with Words receives support from: 
My father, Vernon S. Hidy, coined the word “flymph” in 1962. He told the story in an essay, “The Origin of Flymph Fishing,” published in THE ANGLERS’ CLUB BULLETIN, Vol 53, No 3, Autumn, 1974.
His book, “The Art of Tying the Wet Fly and Fishing the Flymph” (Crown) appeared in 1971 (originally coauthored with Leisenring in 1941). Dad’s Swedish friend Gunnar Johnson translated the word for the title of his 1989 book, “Flymfer & andra mjukhacklade flugor.”