Bly Family History
Bly Name Meaning
English (Norfolk and Suffolk): variant of Bligh Americanized form of German Blei ‘lead’ or of its cognate Bley . Americanized and Flemish form of Dutch Blij ‘merry gay happy’ (see Blei ). Compare Bley . Swedish: of German origin (see 2 above) or a soldier's name. Americanized form of Norwegian Bleie: habitational name from a farmstead in Hardanger named Bleie from a river name from Old Norse bleikr ‘gray pale’ + vin ‘meadow’.
Source: Dictionary of American Family Names 2nd edition, 2022