The sources checked do not record kiras as a personal name or give it any meaning.
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Kira, Kyras
Means "the sweetheart", from Hawaiian ka, "the", and ipo, "sweetheart"
A surname, from Spanish or Italian bravo
From an irish surname, the anglicised form of ciardha, a patronymic given name
Diminutive of Cornelia and other names starting with Cor