English word origin

Etymology of ai

Originated 1685–95, from Brazilian Portuguese aí, from Old Tupi a'y.

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

A pale-throated sloth (Bradypus tridactylus), endemic to forests of southern Venezuela, the Guianas, and northern Brazil.

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

Originated 1685–95, from Brazilian Portuguese aí, from Old Tupi a'y.

Relationships mentioned by the source

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

Derivation mentiona'ytpw

Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "bor",
      "args": {
        "1": "en",
        "2": "pt-BR",
        "3": "aí<id:sloth>"
      },
      "expansion": "Brazilian Portuguese aí"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "tpw",
        "3": "a'y"
      },
      "expansion": "Old Tupi a'y"
    }
  ],
  "links": [
    [
      "aí",
      "aí#Portuguese:_sloth"
    ],
    [
      "a'y",
      "a'y#Old_Tupi"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "A pale-throated sloth (Bradypus tridactylus), endemic to forests of southern Venezuela, the Guianas, and northern Brazil."
      ],
      "tags": [],
      "recordId": "6e217b4f79a9eb523411efbd64e785b62f7a8e6afc791d17ebf7e18786f4ddb7",
      "rawRecordSha256": "19a45a10616ad74b0e45e92d9096b3567f838f48d002a44e176a29d5a02f3a45",
      "sourceRecordOrdinal": 20914
    }
  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
    "links": 0,
    "references": 0,
    "descendants": 0,
    "lexicalRecords": 0,
    "lexicalSenses": 0,
    "glosses": 0
  }
}

Source etymology 2

Original entry ↗

contraction

All right.

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

Contraction of aight (which itself is a contraction of all right).

Inspect preserved source fields

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

{
  "templates": [],
  "links": [
    [
      "aight",
      "aight#English"
    ],
    [
      "all right",
      "all right#English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "contraction",
      "glosses": [
        "All right."
      ],
      "tags": [
        "US",
        "contraction",
        "slang"
      ],
      "recordId": "da31ab1d5cf614b28f8d57336e024917bec2ed12d55df55264cac4ed49b85d76",
      "rawRecordSha256": "90383c313bc9af89670639eaee18822d8d6a2e8e9d29a07ecfe2a8bf0cfd971e",
      "sourceRecordOrdinal": 20915
    }
  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
    "links": 0,
    "references": 0,
    "descendants": 0,
    "lexicalRecords": 0,
    "lexicalSenses": 0,
    "glosses": 0
  }
}

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 ai →

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-YWk