\Harl\, n. [Cf. OHG. harluf noose, rope; E. hards refuse of
flax.]
1. A filamentous substance; especially, the filaments of flax
   or hemp.
2. A barb, or barbs, of a fine large feather, as of a peacock
   or ostrich, -- used in dressing artificial flies. [Written
   also {herl}.]