"gnarled" in the verb sense
1. gnarl
twist into a state of deformity
"The wind has gnarled this old tree"
2. murmur, mutter, grumble, croak, gnarl
make complaining remarks or noises under one's breath
"she grumbles when she feels overworked"
"gnarled" in the adjective sense
1. gnarled, gnarly, knotted, knotty, knobbed
used of old persons or old trees covered with knobs or knots
"gnarled and knotted hands"
"a knobbed stick"
Source: WordNet® (An amazing lexical database of English)
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