ChersoneseyoudaoicibaDictYouDict[Chersonese 词源字典]
from Greek khersonesos "peninsula," from khersos "dry land" + nesos "island," which is of uncertain origin; perhaps from *na-sos, literally "that which swims," from PIE root sna- "to swim" (see natatorium).[Chersonese etymology, Chersonese origin, 英语词源]