Italian word pagare comes from Proto-Indo-European *peh₂ǵ-, Proto-Indo-European *paḱ-, and later Latin pax (Silence! be silent! hush! Harmony. Peace.)
*peh₂ǵ- (Proto-Indo-European)
*paḱ- (Proto-Indo-European)
pax (Latin)
Silence! be silent! hush! Harmony. Peace.
paco (Latin)
I make peaceful, pacify, quiet, soothe; subdue.
pagare (Italian)
(ambitransitive) to pay.