Harmonium (noun)

A keyboard musical instrument similar to a reed organ, in which air is expelled through reeds by means of bellows, producing a sound that is similar to an accordion.

Origin:

From harmonie, the french word for harmony + -ium, a musical instrument.

Examples:

1. The harmonium was a popular instrument in homes and small churches.
2. The harmonium was often used as an accompanying instrument in Indian classical music.
3. The harmonium was a portable and relatively inexpensive instrument.
4. The harmonium was considered to be a versatile instrument, capable of producing a wide range of sounds.
5. The harmonium was a staple of parlor music in the late 19th and early 20th centuries.