harmonious
UK: hɑːˈməʊ.ni.əs | US: hɑːrˈmoʊ.ni.əs
adj. 1. Having a pleasing combination of elements; musically concordant.
adj. 2. Marked by agreement or compatibility; free from conflict.
harmonious = harmoni<musical agreement> + ous<adjective suffix>
- harmoni: Derived from Latin harmonia (from Greek harmonia, meaning "joint, agreement, concord"), originally referring to musical tuning or fitting together.
 - ous: A suffix forming adjectives, indicating "full of" or "having the quality of" (from Latin -osus).
 
Etymology Origin:
The word traces back to Greek harmonia (ἁρμονία), which described the fitting together of musical notes or physical joints. Latin adopted it as harmonia, and Old French later shaped it into harmonie. English added the suffix -ous (from Latin -osus) to create "harmonious," emphasizing a state of balanced agreement—first in music, then extended to relationships and aesthetics.
The choir’s performance was perfectly harmonious.
They worked in a harmonious team environment.
The garden’s colors created a harmonious blend.
A harmonious society values diversity and cooperation.
The architect aimed for a harmonious balance between modern and traditional styles.