prunella

noun

1. A member of the genus Prunella of herbaceous plants, the allheals.
2. (obsolete, uncountable)Any of various diseases characterised by inflammation of the mouth or throat.
3. (archaic, historical, uncountable)A smooth worsted or silk fabric, generally black, formerly used for making shoes and clergymen's gowns.

   “When Edna knocked at Mademoiselle Reisz's front room door and entered, she discovered that person standing beside the window, engaged in mending or patching an old prunella gaiter.”