*SET-U

English word origin

Etymology of piano

Etymology tree Proto-Indo-European *pleth₂-? Proto-Indo-European *pel-? Proto-Indo-European *pleh₂- Proto-Indo-European *-nós Proto-Indo-European *pl̥h₂nós Proto-Italic *plānos Latin plānus Italian piano Proto-Indo-Europ

2 source sectionsExtended source reportWiktionary original ↗
In this entry · 2 source sections

The source etymologies

Wiktionary via Kaikki / Wiktextract

The source reports below are imported and unreviewed by *SET-U. Separate numbered origins and differing source variants are preserved; agreement within this extraction is not independent corroboration.

Source etymology 1

Original entry ↗
noun

A percussive keyboard musical instrument, usually ranging over seven octaves, with white and black colored keys, played by pressing these keys, causing hammers to strike strings.

verb

To play the piano. · To move (the fingers) up and down on, similar to the motions of a pianist playing the piano. · To equip with a piano.

Selected source glosses provide context, not a complete modern definition inventory

Etymology tree Proto-Indo-European *pleth₂-? Proto-Indo-European *pel-? Proto-Indo-European *pleh₂- Proto-Indo-European *-nós Proto-Indo-European *pl̥h₂nós Proto-Italic *plānos Latin plānus Italian piano Proto-Indo-European *bʰerǵʰ- Proto-Indo-European *dʰer-? Proto-Indo-European *dʰerǵʰ- Proto-Italic *forktis Old Latin forctis Latin fortis Italian forte Italian pianofortebor. English pianoforteclip. English piano Clipping of pianoforte, from Italian pianoforte, from piano (“soft”) + forte (“strong”). So named because it could produce a wide range of varied volumes note-by-note, in contrast to older keyboard instruments, notably the harpsichord. Doublet of llano, plain, plane, and plan.

Relationships mentioned by the source

These are extracted mentions, not a timeline or a verified sequence of immediate parents.

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

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      },
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    },
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      "name": "doublet",
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    ],
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      "*pel-",
      "Reconstruction:Proto-Indo-European/pel-#Proto-Indo-European:_fold"
    ],
    [
      "*pleh₂-",
      "Reconstruction:Proto-Indo-European/pleh₂-#Proto-Indo-European:_flat"
    ],
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      "Reconstruction:Proto-Indo-European/-nós#Proto-Indo-European:_verbal_adjectives"
    ],
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      "Reconstruction:Proto-Italic/plānos"
    ],
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      "planus#Latin"
    ],
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      "piano",
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    ],
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    ],
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      "Reconstruction:Proto-Indo-European/dʰer-"
    ],
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      "*dʰerǵʰ-",
      "Reconstruction:Proto-Indo-European/dʰerǵʰ-"
    ],
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      "Reconstruction:Proto-Italic/forktis"
    ],
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      "forctis",
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    ],
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      "fortis",
      "fortis#Latin"
    ],
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      "forte",
      "forte#Italian"
    ],
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      "pianoforte",
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    ],
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    ],
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      "pianoforte",
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    ],
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      "pianoforte",
      "pianoforte#Italian"
    ],
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      "piano",
      "piano#Italian"
    ],
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      "forte",
      "forte#Italian"
    ],
    [
      "harpsichord",
      "harpsichord"
    ],
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      "llano",
      "llano#English"
    ],
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      "plain",
      "plain#English"
    ],
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      "plane",
      "plane#English"
    ],
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      "plan",
      "plan#English"
    ]
  ],
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Source etymology 2

Original entry ↗
adj

Soft, quiet. · Gentle, soft, subdued.

verb

To become softer and less intense.

adv

Softly, as a dynamic in a piece of music.

Selected source glosses provide context, not a complete modern definition inventory

Etymology tree Proto-Indo-European *pleth₂-? Proto-Indo-European *pel-? Proto-Indo-European *pleh₂- Proto-Indo-European *-nós Proto-Indo-European *pl̥h₂nós Proto-Italic *plānos Latin plānus Italian pianobor. English piano Borrowed from Italian piano.

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

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Where this record stops

This page does not supply an independently verified sound-change sequence, first-use manuscript or complete family tree unless a cited analysis explicitly establishes one. Missing detail here is a limit of this record—not a claim that humanity knows nothing more.

An older meaning does not determine what a word must mean today. Follow the sources, preserve disagreements, and keep ancestry separate from interpretation.

Contribute located evidence for piano →

Source and snapshot

Imported from Wiktionary contributors; extracted by Tatu Ylonen / Wiktextract / Kaikki.org. Selected fields are reformatted and grouped; wording, source identity and etymology sections are retained. CC-BY-SA-4.0 applies to the imported source material.

Dump: 2026-10-01 · Extracted: 2026-10-30. These are snapshot dates, not the word’s first attestation or the page’s revision date.

Source entry and bibliography ↗Wiktionary revision history ↗Acquisition and rights ledger
Machine-source provenance
Source SHA-256
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Import run
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Permanent entry ID
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