Why is Chllingworth called a “leach” and later on compared to a ‘miner’? 

Or the negative role of Chillingworth in "The Scarlet Letter."

Roger Chillingworth is the husband of Hester Prynne in Nathaniel Hawthorne's (1804-1864) historical fiction  "The Scarlet Letter". In the novel, he is often compared to "a leech" and "a miner" due to his aggressive and parasitic behaviour. He has versatile roles in the novel.

Chillingworth as a "leech": Generally, in the 17th century, the word "leech" was used to describe physicians because leeches were used medically to suck blood from patients. However, the word "leech" has a double meaning in the novel. Here Chillingworth is portrayed as a physician and a "life sucker". He disrupts Arthur Dimmesdale's everyday life. Chillingworth's relationship with Dimmesdale gradually becomes parasitic. He gradually destroys Dimmesdale's mental vitality under the guise of medical care.

Chillingw