Breakdown of Concameratio sesquipedalis est.
Questions & Answers about Concameratio sesquipedalis est.
Concameratio is a noun. In this sentence, it is the subject of est, so it is in the nominative singular.
A learner may also notice that it ends in -tio, which is a very common ending for Latin abstract nouns, often corresponding to English nouns ending in -tion.
Sesquipedalis is an adjective. It describes concameratio and tells you a measurement or dimension.
In this sentence it is a predicate adjective: it comes with est and describes the subject, rather than standing directly next to the noun in English-style wording.
So the structure is:
- concameratio = the subject
- est = is
- sesquipedalis = what the subject is / how it is described
Because it is a third-declension adjective.
Its nominative singular forms are:
- masculine/feminine: sesquipedalis
- neuter: sesquipedale
Since concameratio is feminine singular, the adjective must agree with it, so Latin uses sesquipedalis.
This is an example of agreement: adjectives in Latin normally agree with the nouns they describe in gender, number, and case.