O / ob-tĕnebro
verb transitive

ob-tĕnebro

2nd PP ob-tĕnebrāre · conj. 1st
to make dark; to darken
to make dark, to darken (eccl. Lat.): obtenebrabitur dies lucis (al. tenebrabitur), Lact. 4, 19: stellae, Vulg. Job, 3, 9: lux, id. Isa. 5, 30: sol, id. ib. 13, 10: dies, id. Mic. 3, 6.