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	Oiva	A noble and brave person.
	Oja	Vitality; A habitational name from a farm; A short form of Ojala
	Okko	The color of Blue. The blue-colored person
	Olavi	The people who always prove as superiors
	Orvokki	Large flowered garden.
	Oskari	A jumping and leaping warrior
	Osmo	A young and energetic name
	Ossian	Fawn; a trusted and happy individual
	Otha	One who is wealthy and fortunate