Úna f
Irish Gaelic: traditional name of uncertain derivation. It is identical in form with the vocabulary word úna hunger, famine, but may rather be connnected with uan lamb. The Anglicized form Una is sometimes taken to be from the feminine of Latin unus one, and therefore a doublet of UNITY (SEE Unity). It is the name used by Edmund Spenser as that of the lady of the Red Cross Knight in The Faerie Queene: he almost certainly had Latin rather than Irish in mind, even though he worked in Ireland for a while.
Cognate: Scottish Gaelic: Úna.
First names dictionary. 2012.