† deˈtenebrate,v.Obs.rare. [f. de- II. 1 + L. tenebræ darkness, tenebrāre to darken.] trans. To free from darkness or obscurity. 1646Sir T. Browne Pseud. Ep. vi. vi. 296 To detenebrate and cleare this truth.1656Blount Glossogr., Detenebrate, to dispel or drive away darkness, to bring light.