What is the meaning of Riva?

A rift or cleft.

third-person singular past historic of river

bank, shore

second-person singular present active imperative of rīvō

up

above (on top)

above (physically over; in a higher place)

definite feminine singular of rive

definite singular of rive

to tear

to grate

to demolish

to tear, rend

to devour

to plunder

good

a rake

bank, shore

to tear, to rip

to grate

to scratch, especially as hard as to make marks

to destruct (a building)

river

Source: wiktionary.org