Where does “Tenebrae” come from?

Tenebrae (English) comes from Latin tenebrae, from Proto-Italic temazros, from Proto-Indo-European temH-(e)s-ro-, from Proto-Indo-European temH- — dark.

Tenebrae (English): A Christian religious service celebrated by the Western Church on the evening before or early morning of Maundy Thursday, Good Friday, and Holy Saturday, involving the gradual extinguishing of candles while a series of readings and psalms are chanted or recited

Definitions

  1. A Christian religious service celebrated by the Western Church on the evening before or early morning of Maundy Thursday, Good Friday, and Holy Saturday, involving the gradual extinguishing of candles while a series of readings and psalms are chanted or recited

Ancestry of “Tenebrae”, step by step

StepLanguageWordMeaning
1Latintenebraedarkness, especially the darkness of night;...
2Proto-Italictemazrosdark
3Proto-Indo-EuropeantemH-(e)s-ro-
4Proto-Indo-EuropeantemH-dark
Every word from Proto-Indo-European temH-