Last name origins & meanings:
- English: from Old French dague ‘dagger’ (of uncertain
origin), hence a metonymic occupational name for a maker or seller of
daggers, or a nickname for someone who carried one. Middle English
Dagger is a later development of the same word. The surname was
taken to southern Ireland in the 17th century.
- Scottish: on the evidence of the early spelling Dog, Black
believed this possibly to be a form of Doig.
- German: from a personal name based on Old High German tac
‘day’.
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