-ther·mia
\ˈthərmēə, ˈthə̄m-, ˈthəim-\  noun combining form 
or -ther·my\ˌ ̷ ̷mē, -mi\ 
(plural -thermias or -thermies) 
Etymology: New Latin -thermia, from Greek thermē heat + Latin -ia -y — more at therm 
 : state of heat : generation of heat 
< diathermy >
< hypothermia >
or -ther·my
< diathermy >
< hypothermia >