English word origin

Etymology of -tious

Rebracketed from words like fractious and presumptious, with the t from the base + -ious, ultimately from Latin ‑tiōsus, which is rebracketed from -t(us) + -i- + -ōsus.

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

Adjective suffix denoting "full of, prone to."

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

Rebracketed from words like fractious and presumptious, with the t from the base + -ious, ultimately from Latin ‑tiōsus, which is rebracketed from -t(us) + -i- + -ōsus.

Relationships mentioned by the source

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

Derivation mention‑tiōsusla
Word-formation component-tusla
Word-formation component-i-la
Word-formation component-ōsusla

Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "suf",
      "args": {
        "1": "en",
        "2": "",
        "3": "-ious"
      },
      "expansion": "+ -ious"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "la",
        "3": "‑tiōsus"
      },
      "expansion": "Latin ‑tiōsus"
    },
    {
      "name": "af",
      "args": {
        "1": "la",
        "2": "-tus",
        "3": "-i-",
        "4": "-ōsus",
        "alt1": "-t(us)"
      },
      "expansion": "-t(us) + -i- + -ōsus"
    }
  ],
  "links": [
    [
      "fractious",
      "fractious#English"
    ],
    [
      "presumptious",
      "presumptious#English"
    ],
    [
      "-ious",
      "-ious#English"
    ],
    [
      "‑tiōsus",
      "‑tiosus#Latin"
    ],
    [
      "-t(us)",
      "-tus#Latin"
    ],
    [
      "-i-",
      "-i-#Latin"
    ],
    [
      "-ōsus",
      "-osus#Latin"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "suffix",
      "glosses": [
        "Adjective suffix denoting \"full of, prone to.\""
      ],
      "tags": [
        "morpheme"
      ],
      "recordId": "3f2f18c280fca14541994d15f31366efa9d71fbc705c62df1d08100efc55dcc5",
      "rawRecordSha256": "c0513906c707294f3fa9ed5f6c4618197d3f659d5154c091c4d89cf2fa1f26dc",
      "sourceRecordOrdinal": 10717708
    }
  ],
  "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 -tious →

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-LXRpb3Vz