-er·gy
\ə(r)jē, ˌərj-, ˌə̄j-, ˌəij-, -ji\  noun combining form 
(-es) 
Etymology: Late Latin -ergia, from Greek -ergeia, -ergia, from ergon work + -eia, -ia -y — more at work 
 : work 
< synergy >
: effect
< allergy >
< synergy >
: effect
< allergy >
-ergy
Suffix
- work - synergy
 
Etymology
From Ancient Greek -εργία (-ergía), from ἔργον (érgon, “work”).