Dear Slawomir

You asked

> Could you explain, to me and world, what mean each
> *ad
> una
> mentum
>
> and whay it together mean
>
> adunamentum

*ad- (from Latin, "to (become)") a sense of motion or direction, or
change

*una (from Latin = unum/una = one, oneness) oneness

*-mentum (from Latin = mentum = process of) forming, result of or by
means of an action.

*adunamentum - (from Latin = a process of becomeing one with)

This word is the origin of the English word "atonement" -
meaning "expiation, reparation for wrong or injury, reconciliation of
God and man, expiation of human sins by Christ permitting atonement
of humanity with God in heaven."

Hope this helps

Regards

John