Definition of "orris"

orris¹

/ˈɒɹɪs/

noun
countable and uncountable, plural orrises
1. Any of several irises that have a fragrant root, especially Iris × germanica.
2. The fragrant root of such an iris.
  Quotations
  Drop twelve drops of genuine oil of rhodium on a lump of loaf-sugar ; grind this wel in a glass mortar, and mix it thoroughly with three pounds of orris powder.
  1826, Samuel Adams, Sarah Adams, The Complete Servant, page 169
  Orris is the part of the florentine iris you don′t see — the rhizome. […] The ancient Egyptians and Greeks learned that the bland-smelling orris root would take on a remarkable fragrance if dried for at least two years.
  1998, Claire Kowalchik, William H. Hylton, Orris, entry in Rodale′s Illustrated Encyclopedia of Herbs, page 406
  Next place your hair, the rose quartz, some of the orris root powder, and the candle drippings into the box.
  2000, Lady Sabrina, The Witch′s Master Grimoire, page 122

orris²

/ˈɒɹɪs/

noun
countable and uncountable, plural orrises
1. A type of gold or silver lace.
2. A pattern in which gold lace or silver lace is worked, especially one in which the edges are ornamented with conical figures placed at equal distances, with spots between them.