Rising in the evening, that is. Several cool words here. There is the word itself, the correction on a point of improper usage and the synonym. It's just packed with wordy goodness!
acronychal, acronycal, a.
Happening in the evening or at night-fall, vespertine, as the acronychal rising or setting of a star. (Sometimes used as if = Rising in the evening or at sunset and setting at sunrise; but this is not correct. When the rising is acronychal, the setting is cosmical, and vice versâ.)