Gnarl

v. i.	1.	To growl; to snarl. [imp. & p. p. Gnarled ; p. pr. & vb. n. Gnarling.] And wolves are gnarling who shall gnaw thee first. - Shak.
n.	1.	a knot in wood; a large or hard knot, or a protuberance with twisted grain, on a tree.

Noun	1.	gnarl - something twisted and tight and swollen; "their muscles stood out in knots"; "the old man's fists were two great gnarls"; "his stomach was in knots" Synonyms: knot
Verb	1.	gnarl - twist into a state of deformity; "The wind has gnarled this old tree"
	2.	gnarl - make complaining remarks or noises under one's breath; "she grumbles when she feels overworked" Synonyms: grumble, murmur, mutter, croak

anamorphism, anamorphosis, asymmetry, bend, bilge, blain, bleb, blister, blob, boss, bow, bubble, buckle, bulb, bulge, bulla, bump, bunch, burl, button, cahot, chine, clump, coarsen, color, condyle, contort, contortion, convex, crook, crookedness, crumple, detorsion, deviation, disproportion, distort, distortion, dowel, ear, flange, flap, flush, frown, gall, glare, glower, granulate, growl, grumble, handle, hill, hiss, horripilate, hump, hunch, imbalance, irregularity, jog, joggle, knob, knot, knur, knurl, lip, look daggers, loop, lopsidedness, lower, lump, mantle, mole, mountain, nevus, nub, nubbin, nubble, papilloma, peg, pimple, quirk, redden, rib, ridge, ring, rough, rough up, roughen, scowl, screw, shoulder, snap, snarl, spine, spit, spring, stud, style, tab, torsion, tortuosity, tubercle, tubercule, turn, turn awry, twist, unsymmetry, verruca, vesicle, wale, warp, wart, welt, wrench, wrest, wring, writhe