Dulong Family History
Dulong Name Meaning
French:: habitational name with fused preposition and definite article du ‘from the’ for someone from Le Long the name of several places in various parts of France. patronymic with fused preposition and definite article du ‘of the’ from the nickname (Le) Long ‘(the) long (the) tall’ (see Long and Lelong ).
Source: Dictionary of American Family Names 2nd edition, 2022