The use of sesquipedalian words; style characterized by the use of long words; sesquipedalism.
Not very long ago, in a northern town, there was a town councillor who delighted in the use of sesquipedalian English.
Even when we cannot get rid of the fact, we manage to smooth it over with a sesquipedalian gloss.
The Belgian bridge is supported on tubular piles of steel of sesquipedalian diameter driven by steam or screwed down into the sand to a depth of fifty feet.
As it would have been an absurdity to have appended diminutives to sesquipedalian names, national wit, rather than deliberate plan, prevented it.
All this was our first taste of the tender mercies of Taylor (the sesquipedalian half-caste introduced two letters back, I believe).