"Contributory" is an adjective that means to be involved in providing help, support, or assistance in some way towards a particular outcome or goal. Full definition
[92] Although I have concluded that it was an abuse of process by the defendants to deny liability completely, they were not guilty of an abuse of process in maintaining the defence of contributory negligence of Mr. Ulmer at all times. (bc-injury-law.com)
It is impossible to understand in a serious fashion a specific historical occurrence — say, the Norman Conquest of 1066 or the American Revolution of the 1770's — without the fullest awareness of the rich variety of contributory factors which provided the preparation for, were related to, and resulted from this or that particular or «dated» moment or happening. (religion-online.org)
Six years of uncleared contributory pension scheme, unpaid gratuities and inability to effect necessary promotions in the last 22 months,» the JNC chairman, Comr. (dailypost.ng)