*SET-U

English word origin

Etymology of -stat

The terminal element in certain names of scientific instruments, employed on the analogy of early coinages from other languages, namely heliostat (from the New Latin hēliostata, itself apparently representing an assumed

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 ↗
suffix

Used to form nouns naming scientific instruments that act to render the prefixed element stationary or static in some respect. · Used to form names of enzyme inhibitors.

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

The terminal element in certain names of scientific instruments, employed on the analogy of early coinages from other languages, namely heliostat (from the New Latin hēliostata, itself apparently representing an assumed Ancient Greek etymon of the form *ἡλιοστάτης (hēliostátēs), from ἥλιος (hḗlios, “sun”) + -στάτης (-státēs), the latter an agent-nominal suffix from the aorist active participial stem (the στα- (sta-) root) of ἵστημι (hístēmi, “to cause to stand”, “to set”)), siderostat (from the Latin sīdus, star + the Ancient Greek -στάτης (-státēs)), and aerostat (from the French aérostat, itself a back-formation from aérostatique (formed after hydrostatique), formed on the analogy of héliostat); later coinages have been formed on the analogy of heliostat, apparently with some reference to the Ancient Greek στατός (statós, “standing”, “stationary”). See also clinostat, hydrostat, and thermostat.

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.

{
  "templates": [
    {
      "name": "root",
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*steh₂-"
      },
      "expansion": ""
    },
    {
      "name": "cog",
      "args": {
        "1": "la-new",
        "2": "hēliostata"
      },
      "expansion": "New Latin hēliostata"
    },
    {
      "name": "cog",
      "args": {
        "1": "la",
        "2": "sīdus"
      },
      "expansion": "Latin sīdus"
    },
    {
      "name": "cog",
      "args": {
        "1": "grc",
        "2": "-στάτης"
      },
      "expansion": "Ancient Greek -στάτης (-státēs)"
    },
    {
      "name": "cog",
      "args": {
        "1": "fr",
        "2": "aérostat"
      },
      "expansion": "French aérostat"
    }
  ],
  "links": [
    [
      "heliostat",
      "heliostat#English"
    ],
    [
      "hēliostata",
      "heliostata#Latin"
    ],
    [
      "ἡλιοστάτης",
      "ἡλιοστάτης#Ancient_Greek"
    ],
    [
      "ἥλιος",
      "ἥλιος#Ancient_Greek"
    ],
    [
      "-στάτης",
      "-στάτης#Ancient_Greek"
    ],
    [
      "στα-",
      "στα-#Ancient_Greek"
    ],
    [
      "ἵστημι",
      "ἵστημι#Ancient_Greek"
    ],
    [
      "siderostat",
      "siderostat#English"
    ],
    [
      "sīdus",
      "sidus#Latin"
    ],
    [
      "star",
      "sider-#Latin"
    ],
    [
      "-στάτης",
      "-στάτης#Ancient_Greek"
    ],
    [
      "aerostat",
      "aerostat#English"
    ],
    [
      "aérostat",
      "aérostat#French"
    ],
    [
      "aérostatique",
      "aérostatique#French"
    ],
    [
      "hydrostatique",
      "hydrostatique#French"
    ],
    [
      "héliostat",
      "héliostat#French"
    ],
    [
      "heliostat",
      "heliostat#English"
    ],
    [
      "στατός",
      "στατός#Ancient_Greek"
    ],
    [
      "clinostat",
      "clinostat#English"
    ],
    [
      "hydrostat",
      "hydrostat#English"
    ],
    [
      "thermostat",
      "thermostat#English"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "suffix",
      "glosses": [
        "Used to form nouns naming scientific instruments that act to render the prefixed element stationary or static in some respect.",
        "Used to form names of enzyme inhibitors."
      ],
      "tags": [
        "morpheme"
      ],
      "recordId": "49d0ea46cec93e045a1bc8286ef07c30a1b71164ab8ae6147e3a32267f2b6a09",
      "rawRecordSha256": "c8a4d770880d5711dd5eb49f35a05f4bda2306dc8c7ef78228e67df3bb1a48fe",
      "sourceRecordOrdinal": 4977163
    }
  ],
  "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 -stat →

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-LXN0YXQ