Mergellina

Mergellina is a coastal district of the city of Naples, Italy. It is located in the quartiere of Chiaia. It stands at the foot of the Posillipo Hill and faces the Castel dell'Ovo. Some people say the name derives from "mergoglino", a local name for the smew^{[citation needed]}, others believe it is a corruption of "Mare Giallo", which refers to when the sea turned yellow due to floating tufa rock dust following a volcanic eruption many centuries ago.^{[citation needed]} However, very likely the real origin of the name is from Latin "mare ialinum", that stands for clear, transparent sea.^[1]