I remember some basics from school, specifically in words from Greek origin.

Thermos, hypo, endo, exo, enea, kilo, ergo, eco, pan, micro...

Coin collection in Portuguese: Numismática.

Many things: Miríade...

Most brought through Roman import, yeah, if not all. They took it to English too.

When something is being delayed forever, we say it will come by the "Calendas Gregas"