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	Olivina	A reminder of olive
	Ombretta	A shadow, or a dusky resemblance
	Onofre	The one who fights for peace or harmony.
	Onofredo	The cadre who fights for the harmony of nation.
	Onofrio	Protector of harmony.
	Oraina	Derived from the Latin word "gold", the most precious and valuable girl child.
	Orazio	The person who is steadfast in prayers.
	Oreste	A huge rugged one
	Orfeo	The one who has come for a determination.