*SET-U

English word origin

Etymology of rem

Initialism.

5 source sectionsBrief source recordWiktionary original ↗
In this entry · 5 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 rapid eye movement, a sleep state.

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

Initialism.

Inspect preserved source fields

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Source etymology 2

Original entry ↗
noun

A non-SI unit of measure for radiation dose, measured as equivalent dose, effective dose, or committed dose, from one roentgen of X-rays or gamma rays.

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

Abbreviation of Roentgen equivalent in man.

Inspect preserved source fields

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Source etymology 3

Original entry ↗
noun

A remark; a programming language statement used for documentation (in BASIC for example); also used in DOS batch files.

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

Shortening of remark.

Inspect preserved source fields

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Source etymology 4

Original entry ↗
adj

Remaining.

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

Shortening of remaining.

Inspect preserved source fields

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Source etymology 5

Original entry ↗
noun

A unit relative to the declared font size of the root element in an HTML document.

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

Blend of root + em.

Relationships mentioned by the source

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

  • Blend componentrooten
  • Blend componentemen
Inspect preserved source fields

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

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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 rem →

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-cmVt