snell
adjective
°Active, brisk or nimble; Lively.
"He is a remarkably snell young lad."
°Quick, sudden; Sharp.
"That horny-handed, snell, peremptory little man. --Dr. J. Brown."
noun
°A short line of horsehair, gut, monofilament, etc., by which a fishhook is attached to a longer (and usually heavier) line.