harmonica
UK[hɑːˈmɒn.ɪ.kə]US[hɑːrˈmɑː.nɪ.kə]
n
a small musical instrument that you play by blowing and sucking air through it while moving it from side to side across your mouth.
Etymology
the word 'harmonica' entered english in the 18th century from the modern latin phrase 'instrumentum harmonicum', meaning 'harmonic instrument'. the latin root 'harmonia' itself derives from the greek 'ἁρμονία' (harmonía), which originally meant a 'means of joining' or 'agreement', and in music referred to 'concord of sounds'. the instrument was named for its ability to produce chords and harmonious notes. the modern, portable mouth organ acquired the name in the 19th century, transferring the classical concept of harmony to a new, accessible musical device.
Analysis
this word is a loanword adapted from latin, where it functioned as an adjective. it is not productively formed from smaller, meaningful english morphemes.
Examples
he played a soulful tune on his blues harmonica.
the sound of a harmonica is often associated with folk and american roots music.
she carries a small harmonica in her pocket to practice during breaks.