Pronunciation: [sˈɛskwa͡ɪpdə͡l] (IPA) 
The word "sesquipedal" is spelled with the prefix "sesqui," meaning "one and a half," and the root word "pedal," referring to feet or a foot-like structure. The IPA phonetic transcription of this word is /sɛskwɪpɛdəl/. The stress is placed on the second syllable, and the vowel in the first syllable is pronounced as "e" as in "bed." This unusual word is often used to describe someone who uses long or complicated words.
Sesquipedal is an adjective that describes something that is excessively long, especially when it comes to words or phrases. The term originates from the Latin word "sesquipedalis," which literally translates to "a foot and a half long." In its literal sense, sesquipedal can refer to a physical length or dimension of an object, but it is predominantly used figuratively to describe the length or verbosity of a spoken or written expression.
When applied to language, sesquipedal often carries a negative connotation, implying that the word or phrase is unnecessarily long or convoluted. It suggests that the speaker or writer has a tendency to use elaborate or pretentious language, often leading to a loss of clarity. Sesquipedal expressions can be seen as pedantic or ostentatious, appearing more to impress or intimidate than to convey meaning effectively.
Furthermore, sesquipedal can also be used humorously or ironically to describe a person or their communications, highlighting their propensity for long-windedness or their fondness for using lofty language.
In conclusion, the term sesquipedal describes something that is exceptionally long, particularly in the context of words or phrases. It often carries a negative connotation, implying excessive length or complexity and signaling a potential lack of clarity or an effort to appear more intellectual.
Containing a foot and a half; long-worded; using long words.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "sesquipedal" is derived from Latin roots. "Sesqui" means "one and a half", while "pedalis" means "foot". Therefore, "sesquipedal" literally translates to "one and a half feet". This word was originally used to describe a meter or line of poetry that consisted of a foot and a half. Over time, it evolved to describe words, phrases, or expressions that are long or characterized by the use of long words.
