To walk crookedly in the discharge of one's duty , not to act uprightly; esp. of an advocate who is guilty of collusion with the opposite party, to make a sham accusation or defence , to collude , prevaricate , to favor collusively

http://lila-erc.eu/data/lexicalResources/LewisShort/id/LexicalSense/n38159.3 an entity of type: LexicalSense

To walk crookedly in the discharge of one's duty , not to act uprightly; esp. of an advocate who is guilty of collusion with the opposite party, to make a sham accusation or defence , to collude , prevaricate , to favor collusively 
To walk crookedly in the discharge of one's duty , not to act uprightly; esp. of an advocate who is guilty of collusion with the opposite party, to make a sham accusation or defence , to collude , prevaricate , to favor collusively 

data from the linked data cloud