Romanian

Romanian is a language that has evolved from Latin, but because it is surrounded by Slavic languages it's no surprise to learn that it has lots of loan words from Slavic.

It's easy for Romanians to learn Italian because lots of pairs of synonyms in Romanian have one Slavic root and one Latin root. So even if the Latin-derived word isn't very common, chances are a Romanian will have heard it somewhere along the way, and will recognise the corresponding word in an Italian text.

There you go.