...the matter is neither of explaining nor of defining but only of describing (in a nonexhaustive manner): To describe = to "unthread" a word...parfiler {to unthread}…"Newton a parfile {un threaded} the sun's light, as our ladies parfilent {unthread} a cloth of gold. -What is parfiler, sir ?-...It's to unthread a fabric, to unweave it thread by thread to separate out the gold."