A new word a day keeps the mental cobwebs away....
Avuncular In the manner of an uncle, possibly an eccentric one.
Coruscate Twinkle, sparkle and glitter often used to describe flashes of wit...
Coxcomb Conceited fool.
Equitation The art of horse riding.
Fabulist An elegant euphemism for liar.
FustianVery pompous or inflated language.
Being of the same shape and general appearance, but not of the same ancestry. Eh, for example, certain dogs and their owners.
Lippitude A bleary eyed condition, which might explain many mornings after a night out!
Mussitation Murmuring, grumbling and not a bad way to describe a teenager.
Nescience Lack of knowledge, ignorance.