OCEANm & fEnglish (Rare)
Simply from the English word ocean
for a large body of water. It is ultimately derived from Greek Ωκεανος (Okeanos)
, the name of the body of water thought to surround the Earth.
ODELLm & fEnglish
From a surname which was originally from a place name meaning "woad hill" in Old English. A woad is a herb used for dyeing.
OFRAm & fHebrew
Hebrew form of OPHRAH
. Originally it was a masculine name, but it is now used for females too.
OMEGAm & fVarious
From the name of the last letter in the Greek alphabet, Ω
. It is often seen as a symbol of completion.
ORA (1)f & mEnglish
Perhaps based on Latin oro
"to pray". It was first used in America in the 19th century.