http://wordsmith.org/awad/archives/0597

tendinous
tenebrous
tenesmus
tenuis
lariat
disembogue
vaquero
aficionado
bonanza
bastinado
calaboose
deinstitutionalization
honorificabilitudinity
hippopotomonstrosesquipedalian
supercalifragilisticexpialidocious
pneumonoultramicroscopicsilicovolcanoconiosis
minatory
ineffable
bumptious
sonorous
piquant
necromancer
effusion
bumbledom
micawber
gradgrind
podsnap
chadband
stiggins

what a bonanza with this list!