Accessary

Ac`ces´sa`ry

a.	1.	Accompanying, as a subordinate; additional; accessory; esp., uniting in, or contributing to, a crime, but not as chief actor. See Accessory. To both their deaths thou shalt be accessary. - Shak. Amongst many secondary and accessary causes that support monarchy, these are not of least reckoning. - Milton.
n.	1.	(Law) One who, not being present, contributes as an assistant or instigator to the commission of an offense. Accessary before the fact (Law) one who commands or counsels an offense, not being present at its commission. Accessary after the fact one who, after an offense, assists or shelters the offender, not being present at the commission of the offense.

Thesaurus

Noun	1.	accessary - someone who helps another person commit a crime accessory abetter, abettor - one who helps or encourages or incites another accessory after the fact - a person who gives assistance or comfort to someone known to be a felon or known to be sought in connection with the commission of a felony accessory before the fact - a person who procures or advises or commands the commission of a felony but who is not present at its perpetration accessory during the fact - a person who witnesses a crime but does not try to prevent it collaborator, henchman, partner in crime, confederate - someone who assists in a plot criminal, crook, felon, malefactor, outlaw - someone who has committed a crime or has been legally convicted of a crime
Adj.	1.	accessary - aiding and abetting in a crime; "he was charged with being accessory to the crime" accessory supportive - furnishing support or assistance; "a supportive family network"; "his family was supportive of his attempts to be a writer"