kraken (n.)

sea-monster said to appear from time to time off the coast of Norway, 1755, from Norwegian dialectal krake (the -n is the definite article as a suffix), apparently a special use of krake "pole, stake, post," also "crooked tree, stunted animal or person."

The popular notion of the kraken dates back at least to the time of Pontoppidan (1698-1764), who wrote a description of it. One of the giant squids, as a cephalopod of the genus Architeuthis, might furnish a reasonable basis for the myth. [Century Dictionary]