Etymograph

English

inobservable

Inobservable comes from Latin inobservabilis ‘unobservable, undiscoverable’, from observābilis ‘observable’, and ultimately from Proto-Italic *serwos ‘guardian?’.

  1. Proto-Italicc. 1500–700 BCE*serwos‘guardian?’reconstructed
  2. Old Latinc. 700–75 BCEservos
  3. Latinc. 75 BCE–200 CEservus‘a slave’
  4. Latin, derivedc. 75 BCE–200 CEservō‘watch, keep safe’
  5. Latin, derivedc. 75 BCE–200 CEobservō‘to observe, notice’
  6. Latin, derivedc. 75 BCE–200 CEobservābilis‘observable’
  7. Latin, derivedc. 75 BCE–200 CEinobservabilis‘unobservable, undiscoverable’
  8. Englishtodayinobservable

attested reconstructed ? uncertain or disputed

Earlier history uncertain.

Lineage

  1. Proto-Italicc. 1500–700 BCE*serwos‘guardian?’reconstructed
  2. Old Latinc. 700–75 BCEservos
  3. Latinc. 75 BCE–200 CEservus‘a slave’
  4. Latin, derivedc. 75 BCE–200 CEservō‘watch, keep safe’
  5. Latin, derivedc. 75 BCE–200 CEobservō‘to observe, notice’
  6. Latin, derivedc. 75 BCE–200 CEobservābilis‘observable’
  7. Latin, derivedc. 75 BCE–200 CEinobservabilis‘unobservable, undiscoverable’
  8. Englishtodayinobservable

Formed from in- ‘not’ + observable

Proto-Indo-European *h₁én ‘in’

Proto-Germanic *in ‘into’

English in-

Linked words

through Proto-Indo-European *ser- ‘to guard, take care’

series, sort, stream, hero, desert, insert, assertion, sermon, exert, heresy, concierge, sorcery, sorcerer, assertive, heretic, sark, strudel, sere, 29 more

through Old Latin servos

serviceable, 4 more

through Latin servus ‘a slave’

service, serve, servitude, serf, servile, 5 more

through Latin servō ‘watch, keep safe’

reserve, conservative, reservoir, conservatism, conserve, conservator, 2 more

through Latin observō ‘to observe, notice’

observe, observant, 1 more

Today it means

adj unobservable

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

Etymograph / Proto-Italic *serwos / inobservable