ŏpācus — Lewis & Short
ŏpācus, a, um, adj.
I In the shade, shaded, shady (class.):
opaca vocantur umbrosa,Fest. p. 185 Müll.:
ripa,Cic. Leg. 1, 5, 15:
frigus,shady coolness, cool shade, Verg. E. 1, 53:
vallis,Hor. Ep. 1, 16, 5.—Comp.:
locus umbrā opacior,Plin. Ep. 5, 6, 25.—Sup.:
opacissima nemorum pascua,Col. 6, 22.—Neutr. absol.:
colores, qui in opaco clarius micant,in the shade, Plin. 10, 20, 22, § 43.—So in plur. with gen.:
per opaca locorum,through shady places, Verg. A. 2, 725; 6, 633.—
B Transf.
1 Darkened as if by shades, dark, obscure (poet. and in post-class. prose):
nox,Verg. A. 4, 123:
domus Cyclopis,id. ib. 3, 619:
nubes,Ov. A. A. 2, 619:
mater,i. e. the earth, id. M. 2, 274:
crepuscula,in the lower regions, id. ib. 14, 122:
vetustas,Gell. 10, 3, 15:
mons,Vulg. 1 Reg. 23, 14.—*
2 Bushy, thick:
barba,Cat. 37, 19.—
II That gives or casts a shade, shady (poet.):
nemus,Verg. A. 8, 107:
ilex,id. ib. 11, 851:
herba,Ov. M. 3, 438.