"percussion musical instrument in which tones are produced by blows of hammers upon stretched strings, the hammers being operated from a keyboard," 1803, from French piano (18c.), Italian piano, shortened forms of pianoforte (q.v.).
Essentially, the pianoforte is a large dulcimer with a keyboard ; but historically it replaced the clavichord and harpsichord, which were keyboard-instruments more akin to the harp than to the dulcimer. [Century Dictionary]
Piano wire "kind of strong steel wire used for strings of pianos," is attested from 1831. Piano-case "wooden box enclosing the mechanism of a piano" is by 1844.
Canaanite god frequently mentioned in Scripture, said to have been propitiated by sacrificing children (Leviticus xviii.21), from Latin Moloch, from Greek Molokh, from Hebrew molekh, from melekh "king," altered by the Jews with the vowel points from basheth "shame" to express their horror of the worship. Hence, figuratively, "any baleful influence to which everything is sacrificed" (1799).
"Polish person," 1570s, from Polish Polak "(male) Polish person," related to Polanie "Poles," Polska "Poland," polski "Polish" (see Pole). By 1834 as a term for Polish Jews (distinguished from Litvak). In North American usage, "Polish immigrant, person of Polish descent" (1879) and in that context considered offensive in English. As an adjective from c. 1600.
type of ancient stringed instrument, the accompanying instrument for psalms, c. 1300, sautrie, from Old French psalterie (12c.) and directly from Latin psalterium "stringed instrument," from Greek psaltērion "stringed instrument," from psallein "play on a stringed instrument, pull, pluck" (see psalm).
From c. 1200 in English in Latin form salteriun. It was similar to a harp, but of different shape and means of obtaining resonance (having a sound-board behind and parallel with the strings). Related: Psalterial; psalterian.
supreme council and highest ecclesiastical and judicial tribunal of the ancient Jews, 1580s, from Late Hebrew sanhedrin (gedola) "(great) council," from Greek synedrion "assembly, council," literally "sitting together," from syn- "together" (see syn-) + hedra "seat" (from PIE root *sed- (1) "to sit"). Compare cathedral.
Abolished at the destruction of Jerusalem, C.E. 70. The proper form is sanhedrin; the error began as a false correction when the Greek word was taken into Mishanic Hebrew, where -in is a form of the plural suffix of which -im is the more exact form.