congruity
UK: kɒŋˈɡruːɪti | US: kənˈɡruːɪti
n. the quality or state of being in agreement or harmony
n. the quality of being geometrically congruent
congruity = con<together> + gru<agree> + ity<noun suffix>
- con<together>: From Latin cum, meaning "with" or "together."
 - gru<agree>: From Latin -gruere (as in congruere), meaning "to come together" or "to agree."
 - ity<noun suffix>: A suffix forming abstract nouns indicating a state or condition (e.g., clarity, unity).
 
Etymology Origin:
The word congruity traces back to Latin congruus ("suitable, agreeing"), derived from congruere ("to come together, correspond"). The morpheme con- emphasizes unity, while -gru- conveys agreement or harmony. Over time, congruity evolved in English to describe both abstract harmony (e.g., ideas) and geometric correspondence (e.g., shapes).
The congruity between their values made collaboration effortless.
The architect ensured the congruity of the design with the surrounding buildings.
There was a striking congruity in their opinions on the matter.
Mathematical congruity requires exact matching of angles and dimensions.
The speech lacked congruity, jumping between unrelated topics.