Monergism ~ Etymology
The word "monergism" consists of two main parts.
The Greek prefix "mono" signifies "one", "single", or "alone" while the suffix "ergon" means "to work".
Taken together it means "the work of one".
Monergism in salvation
The teaching that God alone is the one who saves.
It is opposed to synergism which teaches that God and man work together in salvation.