Sole

Sole is a fish belonging to several families. Generally speaking, they are members of the family Soleidae, but, outside Europe, the name sole is also applied to various other similar flatfish, especially other members of the sole suborder Soleoidei as well as members of the flounder family. In European cookery, there are several species which may be considered true soles, but the common or Dover sole Solea solea, often simply called the sole, is the most esteemed and most widely available. The word sole in English, French, and Italian comes from its resemblance to a sandal, Latin solea. In other languages, it is named for the tongue, e.g. Greek glóssa , German Seezunge, Dutch zeetong or tong or the smaller and popular sliptong (young sole), Hungarian nyelvhal, Spanish lenguado, Chinese lung lei (龍脷, 'dragon tongue'), Arabic lisan Ath-thawr (‏لسان الثور‎) (for the common sole) meaning 'the tongue of ox' in Qosbawi accent, Turkish dil. A partial list of common names for species referred to as sole include:

Source: Wikipedia