Webster’s Revised Unabridged Dictionary · 1913
Gnar
Gnar, n. [OE. knarre, gnarre, akin to OD. knor, G. knorren. Cf. Knar, Knur, Gnarl.] A knot or gnarl in wood; hence, a tough, thickset man; — written also gnarr. [Archaic]
He was . . . a thick gnarre. Chaucer.
Gnar (när), v. i. [imp. & p. p. Gnarred; p. pr. & vb. n. Gnarring.] [See Gnarl.] To gnarl; to snarl; to growl; — written also gnarr. [Archaic]
At them he gan to rear his bristles strong, And felly gnarre. Spenser.
A thousand wants Gnarr at the heels of men. Tennison.