Where does “tenebrous” come from?
tenebrous (English) comes from Middle English tenebrose, from Anglo-Norman tenebrous, from Latin tenebrōsus, from Latin tenebrae, from Proto-Italic temazros, from Proto-Indo-European temH-(e)s-ro-, from Proto-Indo-European temH- — dark.
tenebrous (English): dark and gloomy
Ancestry of “tenebrous”, step by step
Words derived from “tenebrous”