Ooriya, [640b]

Oorlam, [396b]

Oorud, [639b]

Oosfar, [780a]

Ootacamund, [640b]

Opal, [640b]

Opeou, [421b], [426a]

Ophium, Ophyan, Opio, Opion, Opium, [640b], [641a], [b], [642a]

Opper, [426a]

Orafle, [378a]