The story
- Proto-Indo-European*h₂ent-
- Proto-Indo-European*h₂énts?
- Proto-Indo-European*h₂m̥bʰí
- Proto-Italic*amβi-
- Latinambi-
- Proto-Indo-European*h₂eǵ-
- Proto-Indo-European*h₂éǵeti
- Proto-Italic*agō
- Latinagō
- Latinambig(ō)
- Latinambiguus
- Latinambiguitās
- Old Frenchambiguite
- Middle Englishambiguite
- English todayambiguity
From Middle English ambiguite, from Old French ambiguite (French ambiguïté), from Latin ambiguitas, equivalent to ambiguous + -ity.
Etymology from Wiktionary, CC BY-SA 4.0.