syn·er·gism 
(sĭnər-jĭz′əm)
(sĭnər-jĭz′əm)n.
1. Synergy.
2. Christianity The doctrine that individual salvation is achieved through a combination of human will and divine grace.
[New Latin synergismus, from Greek sunergos, working together : sun-, syn- + ergon, work; see werg- in the Appendix of Indo-European roots.]