clavier (n.)

1708, "keyboard of a pianoforte, organ, etc.," from French clavier, originally "a key-bearer," from Latin clavis "key" (from PIE root *klau- "hook"). The French word also is the source of German Klavier, Dutch klavier, Danish klaver, etc. The German word was used generally of keyboard instruments with strings, and is the source of the English use of the word for "a clavichord, a harpsichord, a pianoforte, an organ," attested from 1845.