ruff
ruf 
<French
in cards, to play a trump when another suit is led
tumblebug
TUM-buhl-bug 
<English + <English
any of various beetles that lay their eggs in globular masses of dung
peculiar
puh-KYOOL-yuhr 
<Latin
odd; strange
stalactite
stuh-LAK-tyt 
<Greek
an icicle-shaped mineral deposit hanging from the roof of a cave
stupefy
STOOP-uh-fy 
<Latin
to astound; to bewilder
cloistered
KLOI-stuhrd 
<Latin
living in or confined in a monastery or convent
flapdoodle
FLAP-doo-duhl 
<unknown
foolish talk or writing; nonsense
syrinx
sir-INGKS 
<Latin<Greek
a panpipe; a tunnel-shaped rock passage in Egyptian burial vaults; the vocal organ in birds
infinitesimal
in-fuh-nuh-TES-uh-muhl 
<Latin
too small to be measured; very small
coadunate
koh-AJ-uh-nayt 
<Latin
to unite into one; to combine