Etymograph

English

emeritus

Emeritus comes from Latin ēmeritus ‘(having been) earned, (having been) merited’, and goes back to Proto-Indo-European *(s)mer- ‘to allot’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*(s)mer-1‘to allot’reconstructed
  2. Latinc. 75 BCE–200 CEmereō1‘to deserve, merit’
  3. Latinc. 75 BCE–200 CEēmereō1‘to earn, merit’
  4. Latinc. 75 BCE–200 CEēmeritus1‘(having been) earned, (having been) merited’perfect passive participle of ēmereō
  5. Englishearliest quotation 1823emeritus1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English emeritus
  2. Earliest quotation in Wiktionary’s entry: 1823, Thomas De Quincey, Letters to a Young Man whose Education has been Neglected. L: “I must confess that in such an answer I…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*(s)mer-Wiktionary, English emeritus‘to allot’reconstructed
  2. Latinc. 75 BCE–200 CEmereōWiktionary, English emeritus‘to deserve, merit’
  3. Latinc. 75 BCE–200 CEēmereōWiktionary, English emeritus‘to earn, merit’
  4. Latinc. 75 BCE–200 CEēmeritusWiktionary, English emeritus‘(having been) earned, (having been) merited’perfect passive participle of ēmereō
  5. Englishearliest quotation 1823emeritusWiktionary, English emeritus. Earliest quotation in Wiktionary’s entry: 1823, Thomas De Quincey, Letters to a Young Man whose Education has been Neglected. L: “I must confess that in such an answer I…”

The story

The adjective is a learned borrowing from Latin ēmeritus (‘(having been) earned, (having been) merited; (having been) served, having done one’s service’), the perfect passive participle of ēmereō (‘to earn, merit; to gain by service; (military) to complete one’s obligation to serve, to serve out one’s time’), from ex- (prefix meaning ‘away; out’) + mereō (‘to deserve, merit; to acquire, earn, get, obtain; to render service to; to serve’) (ultimately from Proto-Indo-European *(s)mer- (‘to allot; to assign’)).

Full etymology on Wiktionary

Linked words

through Proto-Indo-European *(s)mer- ‘to allot’

memory, memorable, martyr, mourn, memoir, memorandum, mora, mer, memoria, 15 more

through Latin mereō ‘to deserve, merit’

merit, 6 more

Today it means

adj Retired, but retaining an honorific version of a previous title.

Sources

Sources: Wiktionary, “emeritus”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / Proto-Indo-European *(s)mer- / emeritus

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