For this Duncan Miles there are 2 different names on Yasni.
In the ranking of the most common first names Duncan Miles is on position 4589.
Male first name (English): Duncan, brown (haired) warrior; Old Irish (Word format); donn = brown; chadh = the warriors
Male first name (English): Miles, Old French (word format); miles = the soldier (Latin), from the Normans to England accommodated name, meaning not known for certain, perhaps to Latin 'miles' (soldier) could also be an old familiar form of 'Michael' may be