o (Greek #5599)
as a sign of the vocative case, O; as a note of exclamation, oh
KJV usage: O.
Pronounce: o
Origin: a primary interjection
aner (Greek #435)
a man (properly as an individual male)
KJV usage: fellow, husband, man, sir.
Pronounce: an'-ayr
Origin: a primary word (compare 444)