harl

noun

1. a fibre, especially a fibre of hemp or flax, or an individual fibre of a feather

2. A barb, or barbs, of a fine large feather, as of a peacock or ostrich, used in dressing artificial flies.

verb

1. (transitive) To surface a building using a slurry of pebbles or stone chips which is then cured using a lime render.