An emotional adverb, or a painful groan.[1]
'Augh!' can also express wonderment. Sophocles [writes]: "augh! augh! How horrible it is to have sense where there is no profit in having sense. I knew these things well but forgot them; otherwise I would not have come here." How horrible it is, he is saying, to have sense, when having sense brings no profit to the one having sense.[2]
"Augh, how largely reigneth everywhere the obol-pair!" Both because of what is said -- that they put two obols on the mouths of corpses -- and becuase the stipend for jury duty was two obols. But it was also three obols: for the sake of laziness the generals added this. "And when he said about the fare, 'how will I be conveyed?' he says, 'in a boat only yea big an old fellow will take you across, after he gets his two-obol pay.'"[3]