imbrĭcus — Lewis & Short
imbrĭcus, a, um, adj.imber,
I rainy (ante- and post-class.):
Auster,rain-bringing, Plaut. Merc. 5, 2, 35:
solstitium (opp. hiems serena),Macr. S. 5, 20, 14: imbrica tempestate pluviam videtur significare, Paul. ex Fest. p. 109 Müll.