Слово "carp". Англо-русский словарь Мюллера

He saw the face of a fish, a carp, with an infinitely painfully opened mouth, the face of a dying fish, with fading eyes—he saw the face of a new-born child, red and full of wrinkles, distorted from crying—he saw the face of a murderer, he saw him plunging a knife into the body of another person—he saw, in the same second, this criminal in bondage, kneeling and his head being chopped off by the executioner with one blow of his sword—he saw the bodies of men and women, naked in positions and cramps of frenzied love—he saw corpses stretched out, motionless, cold, void— he saw the heads of animals, of boars, of crocodiles, of elephants, of bulls, of birds—he saw gods, saw Krishna, saw Agni—he saw all of these figures and faces in a thousand relationships with one another, each one helping the other, loving it, hating it, destroying it, giving re-birth to it, each one was a will to die, a passionately painful confession of transitoriness, and yet none of them died, each one only transformed, was always re-born, received evermore a new face, without any time having passed between the one and the other face—and all of these figures and faces rested, flowed, generated themselves, floated along and merged with each other, and they were all constantly covered by something thin, without individuality of its own, but yet existing, like a thin glass or ice, like a transparent skin, a shell or mold or mask of water, and this mask was smiling, and this mask was Siddhartha's smiling face, which he, Govinda, in this very same moment touched with his lips.

It was only because he was of an argumentative mind that in their cabin at night he permitted himself to carp.

isn't a kind of nasty carping activity;

"Since you say you were happy, it means you lived more, not less; why do you pretend and apologize?" Aglaya began sternly and carpingly. "And please don't worry about lecturing us, there's nothing there to make you triumphant.