Word Study
Sheatfish
CIDE DICTIONARY
Sheatfish, n. [Cf. dial. G. scheid, schaid, schaiden.].
A European siluroid fish (Silurus glanis ) allied to the cat-fishes. It is the largest fresh-water fish of Europe, sometimes becoming six feet or more in length. See Siluroid. [1913 Webster]
OXFORD DICTIONARY
Sheatfish, n. (pl. same or sheatfishes) a large freshwater catfish, Silurus glanis, native to European waters.
Etymology
earlier sheath-fish, prob. after G Scheid
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