godan verb (-ku), transitive verb
train thoroughly; forge to perfection
Implies intensive, sustained training to reach a high level. Often used in the past tense attributive form 鍛え抜かれた to describe a well-trained body, skill, or person.
See also: 抜く
彼は鍛え抜かれた肉体を持っている。
He has a thoroughly trained body.
長
He perfected his skills through years of training.