osteophyte = a small bony outgrowth. Also called an exostosis.

osteosarcoma - a malignant tumor of bone.

ostium - Scripps-Howard definition - one of the lateral slits in the heart of an arthropod by wghich blood enderes from the pericardim. Dictionary says opening or orifice . Also Latin
word for port.
From the Internet:
“Leaving Rome and following the sea road, it takes about 30 minutes to reach Ostia, the Roman city of the Imperial age whose Latin name "Ostium" means: mouth of the river, being situated at the mouth of the Tiber river.”

otosis - found only in a couple word sites that give only two word definitions = mishearing

oud
n.
5Ar #dd, orig. wood, hence wooden instrument6 a stringed instrument of the Middle East and N Africa, like a lute

ousia - from the Internet:
“This paper is an initial attempt to develop a dynamic conception of being which is not anarchic. It does this by returning to Aristotle in order to begin the process of reinterpreting the meaning of ousia, the concept according to which western ontology has been determined.

SEC. 11-21-33. Owelty a lien.
In all cases where owelty is allowed, it shall be a lien upon the share of the party charged therewith, which shall be superior to all other liens made or suffered by such party.

a stringed instrument of the Middle East and N Africa, like a lute

Duh!

http://www.bartleby.com/61/74/L0297400.html

Dear Faldage: your "Duh" sounds flat.

"Duh" sounds flat

That's because I'm using a Middle Eastern tuning. Besides being Pythagorean and therefore sounding a little off to the Western trained ear anyway, the fourth and sixth are a quarter-tone flat of what you would expect.

>otosis - found only in a couple word sites that give only two word definitions = mishearing

it wouldn't be right to gloss this one over, what with all of the posts in these fora relating to modegreens and malapropisms and etc; so here's a gloss:

otosis - Mishearing; alteration of words caused by an erroneous apprehension of the sound.
1860 Haldeman Analyt. Orthogr. xii. 65 Otosis is a change in words, due to misconception of the true sound, influencing consonants of the same quality. 1884 J. A. Harrison Negro-Eng.Introd. in Anglia, Negro English is an ear-language altogether,..built up on what the late Professor Haldeman of Pennsylvania called otosis, an error of ear, a mishearing.

Very nice, tsuwm. Makes it a neuro-psychiatric problem,
not disease of the ear alone. Thanks for taking the trouble
to get this information.

ousia = substance, property, possessions, estate.

This Greek word has been appearing in recent American vernacular: Ousia daddy?