subrubeo
subrubeo, to grow ruddy, turn reddish, blush
Could not find subrubet in Logeion dictionaries.
subrubet Verb: present active indicative 3rd singular of subrubeo
sub-rubeo, ēre, rötlich sein, Partiz. subrubēns = rötlich, Ov. art. am. 2, 316, Pallad. u.a.
subrŭbĕō, (15) ēre, intr., être un peu rouge : Ov. Am. 2, 5, 36 || rougir : Pall. 4, 10, 31.