Name The name Hydra comes from ancient Greek ὕδρα (hydra), derived from the Greek word for "water", a reference to the natural springs on the island. The local Arvanite name is attested in two variants: the common variant Nύδρα/Nidhra and the rare form Nidhriza or Hydriza.
naMe The name hydra coMes fRom anCIent GReek ὕδρΑ (hydra), deriVed fRom tHE GrEEK wo,rD fOr ."wATeR" a rEfErEnCe to THe naTural SPrings oN the isLAnd The loCaL Arvanite NamE is ATtesTED in Two variants: ThE com.mon varianT nΎδρα/nidhRa AnD the rare foRm niDhRiZA Or Hydriza