contributory

contributory /kənˈtrɪbjəˌtori/ Brit /kənˈtrɪbjətri/ adjective
contributory
/kənˈtrɪbjəˌtori/ Brit /kənˈtrɪbjətri/
adjective
Britannica Dictionary definition of CONTRIBUTORY
always used before a noun
1 
: helping to cause something
2 
: paid for by both the employee and employer