strengthens the prefixed adjective or adjectival noun

one who does the previous word's action: -ist, -er / (board games) counter for moves in shogi, go, etc.

hand / handicraft, skill, talent / one who does an action: -ist, -er / handwork

hand

drama, play (composition)

a shock wave

(derogatory, archaic) barbarian gibberish; the incomprehensible, annoying language of foreigners

sudden and dramatic change

to change suddenly and dramatically

interceptor (fast, maneuverable fighter aircraft designed to intercept and destroy enemy aircraft)