GNU Collaborative International Dictionary of English

Found one definition

1.       
   Grisly , a. [OE, grisly, grislich, AS. grislic, gryslic, fr. grsan to shudder; cf. OD. grijselick horrible, OHG. grisenl?ch, and also AS. gre?san to frighten, and E. gruesome.] Frightful; horrible; dreadful; harsh; as, grisly locks; a grisly specter. “Grisly to behold.” 
   Chaucer.
   
   1913 Webster
   A man of grisly and stern gravity.
   Robynson (More's Utopia).
   
   1913 Webster
   Grisly bear. (Zool.) See under Grizzly.
   1913 Webster