What is the meaning of Orris?

Any of several irises that have a fragrant root, especially Iris × germanica.

The fragrant root of such an iris.

A type of gold or silver lace.

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.

ground squirrel

Source: wiktionary.org