*SET-U

English word origin

Etymology of unary

From Latin ūnus (“one”) + -ary, on the pattern of binary, ternary, etc.

1 source sectionExtended source reportWiktionary original ↗
In this entry · 1 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.

Unnumbered source etymology

Original entry ↗
noun

The unary, or bijective base-1, numeral system. · Unary coding, an entropy encoding for natural numbers.

adj

Consisting of or involving a single element or component. · Of an operation, function, procedure, or logic gate, taking exactly one operand, argument, parameter, or input; having domain of dimension 1.

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

From Latin ūnus (“one”) + -ary, on the pattern of binary, ternary, etc.

Relationships mentioned by the source

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

  • Derivation mentionūnusla
  • Word-formation component-aryen
Inspect preserved source fields

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

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        "3": "ūnus",
        "4": "",
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      },
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    },
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    ],
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    ],
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      "ternary",
      "ternary#English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
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      "glosses": [
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        "Unary coding, an entropy encoding for natural numbers."
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      ],
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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 unary →

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-dW5hcnk