"full of darkness," late 15c., from Old French tenebros "dark, gloomy" (11c., Modern French ténébreux), from Latin tenebrosus "dark," from tenebrae "darkness" (see temerity). Related: Tenebrosity.
a tenebrous cave
tendinitis
tendon
tendonitis
tendril
tenebrism
tenebrous
tenement
tenesmus
tenet
tenfold
Tennessee
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