Lewis Short
(verb) : umbro, āvi, ātum, 1, and n. umbra
* To shade, shadow, overshadow, overspread, cover; to make or cast a shade (mostly poet. and in post-Aug. prose; not in Cic.).
* Lit.: (quercus) Umbrabat coma summi fastigia montis,Sil. 5, 488: colles,Stat. S. 4, 2, 36: montes oleā,i. e. to plant,Sil. 14, 24: carchedonios purpureos,Plin. 37, 7, 25, § 95 (dub.; al. obumbrante): matrem (i. e. tellurem) rosarum floribus,Lucr. 2, 629.
* Transf.: tempora quercu,Verg. A. 6, 772: frontem umbrante capillo,Sil. 1, 403: dux umbratus rosis,Claud. B. Gild. 444; id. VI. Cons. Hon. 164.—In a Greek construction: umbratus tempora ramis,Stat. Th. 6, 554: umbratus genas,i. e. covered with a beard,id. S. 3, 4, 79: umbrata tempora galero,Val. Fl. 4, 137: umbrantur somno pupulae, are shaded, i. e. covered, Varr. ap. Non. 172, 4: telis diem,to darken,Claud. in Ruf. 2, 122.—Absol.: omnes paene virgae, ne umbrent, abraduntur,cast a shade,Col. 5, 7, 2.
Charlton T. Lewis, Charles Short, A Latin Dictionary