Last name origins & meanings:
- Scottish: habitational name from any of the various places
called Calder, Caldor, or Cawdor. Calder in Thurso is recorded in the
early 13th century in the form Kalfadal and was named with Old
Norse kalfr ‘calf’ + dalr ‘valley’. The others are
probably the same as in 2 below.
- English: habitational name
from Calder in Cumbria, named from the river on which it stands. This
is probably a British name, from Welsh caled ‘hard’, ‘violent’
+ dwfr ‘water’, ‘stream’.
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