sesquicentennials (words that are 'sesquipedalians', not that they are 150 years old)
(I've seen oratorios along the)
autostrada
(Does)
killerjack
(exist?)
roster
Can't see why not Francis, have come across 'killerjack' the Ripper.
(Now you know why I asked, Dutchy

)
(Sometimes I'm a)
roisterer