irrŭbesco

bŭi, 3
I. v. inch. n. [in-rubesco], to grow red, be reddened: nec sanguine ferrum irrubuit, Stat. Th. 6, 231; 9, 647: haemachates sanguineis maculis irrubescit, Sol. 5, 27.—
II. To throw a red light upon a thing: tuis ut mihi vultibus ignis irrubuit, Stat. S. 5, 3, 32.
Lewis & Short
A Latin Dictionary, 1879
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