Usage of Deo volente, Deo gratias, Dies Irae

What about the root(s),and usage of :

Deo volente , Deo gratias , Dies Irae

I don’t have nightmares about it , Sir Bill.

Good morning Salam, I’m afraid that I have no idea. I am not of a religious bent, but I do hope that I am Christian in my attitude to others.

Bill.

These are all Latin phrases, but originate in Greek.

Deo volente
Deo comes from the Latin root Deus, meaning God, volente from the latin root ‘volens’, willing.

Literally, "God willing’ -(compare to Arabic ‘Inshalallah’ إن شاء الله)

Deo gratias
Again, Deo comes from ‘Deus’, and ‘gratias’ is the accusative form of ‘gratia’, from the verb ‘gratior’, meaning to give thanks, or praise.

Literally, ‘thanks to God’.

Dies Irae

Dies is the Latin word for ‘Day’, ‘Irae’ from the Latin ‘Ira’ or ‘anger or wrath’. (Compare English ‘Irritate’).

Literally, the Day of Wrath, or Judgment Day, the day in Christian belief where God himself will judge those who are worthy to enter Heaven, and those who are doomed to Hell.

Note that ‘Deus’, and ‘gratia’ are Latin words borrowed directly from Greek into Latin.

Many thanks for you Skrej.
Please, I want to know the pronunciation --pronounce phonetics – of :

" Deo volente , Deo gratias, Dies Irae "

And thanks in advance.