You were right if you worked out fjord is a Viking word, but, believe it or not, there are at least 11 other words on page 112 that come from the Viking language (Old Norse).

The other Old Norse words are:

their     oars     boat     they     short     cast

  both     leaking     got     gave     want

Over a thousand years ago, the Vikings settled in many parts of England, so Old Norse words became part of the English language.