Dónal (also spelled Domhnall and Domnall) has nothing to do with Daniel:
"Since the seventeenth century Domnall has everywhere been equated with the biblical
Daniel, a name with which it has not connection."
Irish Names, by Donnchadh Ó Corráin and Fidelma Maguire, Dublin, 1990 (2nd ed.) (p. 75)
"From the seventeenth century Domhnall has been anglicised as
Daniel, in other words he has been equated with the biblical character. The two names have no affinity. In Scotland Domhnall has been anglicised
Donald."
A-Z of Irish Names for Children, by Diarmaid Ó Muirithe, Dublin, 2007 (p. 69)
Lumia
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