Etymograph

English

sesquicentenary

Sesquicentenary comes from English centenary ‘100 year anniversary’, from Latin centēnārius ‘containing a hundred’, and ultimately from Proto-Indo-European *déḱm̥ ‘ten’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*déḱm̥‘ten’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*ḱm̥tóm‘hundred’reconstructed
  3. Proto-Italicc. 1500–700 BCE*kəntom‘hundred (100)’reconstructed
  4. Latinc. 75 BCE–200 CEcentum‘hundred’
  5. Latin, derivedc. 75 BCE–200 CEcentēnus‘hundredfold’
  6. Latin, derivedc. 75 BCE–200 CEcentēnārius‘containing a hundred’
  7. English1500–presentcentenary‘100 year anniversary’
  8. Englishtodaysesquicentenary

attested reconstructed ? uncertain or disputed

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*déḱm̥‘ten’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*ḱm̥tóm‘hundred’reconstructed
  3. Proto-Italicc. 1500–700 BCE*kəntom‘hundred (100)’reconstructed
  4. Latinc. 75 BCE–200 CEcentum‘hundred’
  5. Latin, derivedc. 75 BCE–200 CEcentēnus‘hundredfold’
  6. Latin, derivedc. 75 BCE–200 CEcentēnārius‘containing a hundred’
  7. English1500–presentcentenary‘100 year anniversary’
  8. Englishtodaysesquicentenary

A compound of sesqui- ‘one and a half’ + centenary ‘100 year anniversary’

Proto-Indo-European *sēmi-

English sesqui-

Latin centēnārius ‘containing 100’

English centenary

Linked words

through Proto-Indo-European *déḱm̥ ‘ten’

ten, dick, decade, dean, dozen, den, diner, decimal, denier, tenfold, deca, dwt, doyen, deni, 47 more

through Proto-Indo-European *ḱm̥tóm ‘hundred’

hundred, hectare, 11 more

through Proto-Italic *kəntom ‘hundred (100)’

centurion, centigrade, 9 more

through Latin centum ‘hundred’

century, cent, sen, 11 more

through Latin centēnārius ‘containing a hundred’

centenarian, 2 more

Today it means

noun A 150-year anniversary.

Language periods are conventional ranges, not dates for this word.

Etymograph / Proto-Indo-European *déḱm̥ / sesquicentenary

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