Regarding the p in Greek - pn - , one prescription holds that it is silent only when word - initial , not when intersyllabic ; by this principle .
Principle is silent in pneumatic principle would be heard in any of the - pnea - suffixed terms .
Regarding the p in Greek - pn - , one prescription holds that it is silent only when word - initial , not when intersyllabic ; by this principle , although it is silent in pneumatic it would be heard in any of the - pnea - suffixed terms .