v. t. - To injure by working secretly; to destroy or overthrow by clandestine measure; to undermine.
v. t. - To expend too little work upon; as, to underwork a painting.
v. t. - To do like work at a less price than; as, one mason may underwork another.
v. i. - To work or operate in secret or clandestinely.
v. i. - To do less work than is proper or suitable.
v. i. - To do work for a less price than current rates.
n. - Inferior or subordinate work; petty business.