also: せくぐまる
godan verb (-ru)
bend down with a round back; hunch over
Describes a posture where the back is rounded and the body is lowered, often in a cramped or defensive manner. Rare literary word; in modern Japanese, うずくまる or かがむ are more common.
彼は寒さに跼まって震えていた。
He was hunched over and shivering in the cold.
古い小説で「跼まる」という表現を見つけた。
I came across the expression 跼まる in an old novel.