lu·te·fisk 
(l
t
ə-f
ĭsk
′) also
lut·fisk (l
t
f
ĭsk
′)
n. A traditional Scandinavian dish made from stockfish that has been soaked in a lye solution for several days before cooking, becoming soft and gelatinous.
[Norwegian : lut, lye (from Swedish, from Old Norse laudhr, soap, foam; see leu(ə)- in the Appendix of Indo-European roots) + fisk, fish (from Old Norse fiskr).]