Colby Family History
Colby Name Meaning
English: habitational name from places in Norfolk and Cumbria named Colby, from the Old Norse personal name Koli (a byname for a swarthy person, from kol ‘(char)coal’) + Old Norse býr ‘settlement’. Variant spelling of Norwegian Kolby, a habitational name in Akershus, with the same etymology as 1.
Source: Dictionary of American Family Names ©2013, Oxford University Press