also oompah, 1877, imitative of the sound of a bass brass instruments.
oogenesis
ooh
oolite
oology
oolong
oom-pah
oomph
-oon
oops
Oort cloud
ooze
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}