Knotty and misshapen. / Made rough by age or hard work.

simple past tense and past participle of gnarl (Etymology 1)

simple past tense and past participle of gnarl (Etymology 2)

A knot in wood; a large or hard knot, or a protuberance with twisted grain, on a tree. / Something resembling a knot in wood, such as in stone or limbs.

(transitive) To knot or twist something.

Gnarled, knotty, twisted.

(intransitive) To snarl or growl; to gnar.

present participle of gnarl

plural of gnarl

Third-person singular simple present indicative form of gnarl