The Collaborative International Dictionary
                    Gnarring
                    
                        
                
                                                                    Gnar \Gnar\, v. i. [imp. & p. p. Gnarred; p. pr. & vb. n. Gnarring.] [See Gnarl.] To gnarl; to snarl; to growl; -- written also gnarr.
At them he gan to rear his bristles strong,
         And felly gnarre.                        
--Spenser.
A thousand wants
         Gnarr at the heels of men.               
--Tennison.
Wiktionary
                    gnarring
                    
                        
                
                                                                    vb. (present participle of gnar English)
Usage examples of "gnarring".
A handful of Lian and Baeron were there as well, along with an army of Red Hills Drimma, and they swept the enemy away, the Foul Folk to hie into the Gnarring, the Southerlings to flee east.