sesquipedalian
(ˌsɛskwɪpɪˈdeɪlɪən) or less commonly
sesquipedal
adj
1. tending to use very long words
2. (of words or expressions) long and ponderous; polysyllabic
n
a polysyllabic word
[C17: from Latin sēsquipedālis of a foot and a half (coined by Horace in Ars Poetica), from sesqui- + pedālis of the foot, from pēs foot]
ˌsesquipeˈdalianism, sesquipedality n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ses•qui•pe•da•li•an
(ˌsɛs kwɪ pɪˈdeɪ li ən, -ˈdeɪl yən)
adj.
1. given to using long words.
2. (of a word) containing many syllables.
[1605–15; < Latin sēsquipedāli(s) measuring a foot and a half]
Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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