*SET-U

English word origin

Etymology of PRO

Initialism.

2 source sectionsBrief source recordWiktionary 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

Initialism of pressure retarded osmosis. · Initialism of patient-reported outcome.

name

Initialism of Police Regional Office. · Abbreviation of Prohibition Party.

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

Initialism.

Inspect preserved source fields

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

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  "lexical": [
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      "pos": "noun",
      "glosses": [
        "Initialism of pressure retarded osmosis.",
        "Initialism of patient-reported outcome."
      ],
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      "glosses": [
        "Initialism of Police Regional Office.",
        "Abbreviation of Prohibition Party."
      ],
      "tags": [
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Source etymology 2

Original entry ↗
symbol

A theoretical phonologically null pronoun · Used to indicate personal pronoun in sign language glosses, e.g. PRO.1 or PRO-1 for the first person.

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

From the term pronoun.

Inspect preserved source fields

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

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      "name": "wp",
      "args": {
        "1": "+ (linguistics)"
      },
      "expansion": ""
    }
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    [
      "pronoun",
      "pronoun#English"
    ]
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  "lexical": [
    {
      "pos": "symbol",
      "glosses": [
        "A theoretical phonologically null pronoun",
        "Used to indicate personal pronoun in sign language glosses, e.g. PRO.1 or PRO-1 for the first person."
      ],
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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 PRO →

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
5ff2c072f8099f2d2ce484bd6957bf179f046d2ad37bc36555edf8bb84cb5291
Import run
73216b9a9b78ed3830994bf853103716f5a4dc57099e371e9f8fdc468facca26
Permanent entry ID
w-UFJP