Dictionary.com
Thesaurus.com

herb-of-grace

American  
[urb-uhv-greys, hurb-] / ˈɜrb əvˈgreɪs, ˈhɜrb- /

noun

Archaic.

PLURAL

herbs-of-grace
  1. rue.


herb of grace British  

noun

  1. an archaic name for rue 2

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of herb-of-grace

1540–50; so called from the association of rue 2 (the plant name) with rue 1 (repent, repentance)

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Rue, also known as herb-of-grace, thrives in dry conditions.

From Washington Times

Indeed, sir, she was the sweet Marjoram of the Salad, or rather the Herb-of-grace.

From Project Gutenberg

Mercy, that herb-of-grace, Flowers now but seldom.

From Project Gutenberg