ἀκρό-νυκτος · akro-nyktos — LSJ
rising at sunset: hence, in opposition, Ζεύς Vett.Val. 168.13; ἀ. σχηματισμοί, προηγήσεις, Ptol. Alm. 10.6, Tetr. 78:—as Subst., -νυκτος, ἡ, with or without φάσις, opposition, Ptol. Alm. 10.7, Tetr. 77. (Freq. written ἀκρων-.)