P / purpŭrasco
verb intransitive

purpŭrasco

2nd PP purpŭrascĕre · conj. 3rd
to grow purple; become of a purple color
v. inch. n. [purpuro], to grow purple, become of a purple color: unda cum est pulsa remis, purpurascit, Cic. ap. Non. 162, 31 (Ac. Fragm. 2, 7 B. and K.).