English
unambiguous
Unambiguous comes from Latin agō ‘to act, to behave’, from Proto-Italic *agō ‘to drive’, and ultimately from Proto-Indo-European *h₂eǵ-.
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂eǵ-reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*h₂éǵeti‘to be driving’reconstructed
- Proto-Italicc. 1500–700 BCE*agō‘to drive’reconstructed
- Latinc. 75 BCE–200 CEagō‘to act, to behave’
- Latin, derivedc. 75 BCE–200 CEambig(ō)
- Latin, derivedc. 75 BCE–200 CEambiguu
- English1500–presentambiguous
- Englishearliest quotation 1965unambiguous
attested reconstructed ? uncertain or disputed deepest recorded ancestor
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂eǵ-reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*h₂éǵeti‘to be driving’reconstructed
- Proto-Italicc. 1500–700 BCE*agō‘to drive’reconstructed
- Latinc. 75 BCE–200 CEagō‘to act, to behave’
- Latin, derivedc. 75 BCE–200 CEambig(ō)
- Latin, derivedc. 75 BCE–200 CEambiguu
- English1500–presentambiguous
- Englishearliest quotation 1965unambiguous
Earliest quotation: 1965, Donald Knuth, On the Translation of Languages from Left to Right: “An LR(k) grammar is clearly unambiguous, since the definition…”
Linked words
through Proto-Indo-European *h₂eǵ-
suggest, register, essay, acre, gesture, congestion, digest, agrarian, progesterone, gestation, ingestion, belligerent, ingest, agitate, axiomatic, agger, samaj, gestion, gerund, 129 more
through Proto-Indo-European *h₂éǵeti ‘to be driving’
strategy, agony, antagonist, reactionary, axiom, antagonism, agonist, antagonize, stratagem, glucagon, agonize, 103 more
through Proto-Italic *agō ‘to drive’
reaction, actively, transaction, radioactive, inactive, retroactive, reagent, hyperactivity, 81 more
through Latin agō ‘to act, to behave’
act, action, active, agency, activity, actual, agent, actor, agenda, examine, examination, activate, squat, agile, agility, assay, enact, agitation, radium, actuator, cogent, actuation, inexact, actuate, exigent, redact, 96 more
through Latin ambig(ō)
through English ambiguous
Today it means
adj Clear, and having no uncertainty or ambiguity.
Language periods are conventional ranges, not dates for this word.
Etymograph / Proto-Indo-European *h₂eǵ- / unambiguous