disambiguatory

Etymology tree
Proto-Indo-European *dwóh₁
Proto-Indo-European *d(w)is-
Proto-Italic *dis-
Latin dis-
Old French des-bor.
▲
Latin dis-bor.
Middle English dis-
English dis-
Proto-Indo-European *h₂ent-
Proto-Indo-European *-s
Proto-Indo-European *h₂énts?
Proto-Indo-European *h₂m̥bʰíder.
Proto-Italic *amβi
Latin ambi-
Proto-Indo-European *h₂eǵ-
Proto-Indo-European *-eti
Proto-Indo-European *h₂éǵeti
Proto-Italic *agō
Latin agō
Latin ambig(ō)
Proto-Indo-European *-wós
Proto-Italic *-wos
Latin -uus
Latin ambiguuslbor.
English ambigu(ous)
Proto-Indo-European *-h₂
Proto-Indo-European *-éh₂
Proto-Indo-European *-tós
Proto-Indo-European *-eh₂tos
Proto-Italic *-ātos
Latin -ātuslbor.
English -ate
English ambiguate
English disambiguate
Proto-Indo-European *-tōr
Proto-Italic *-tōr
Latin -tor
Proto-Indo-European *-yós
Proto-Italic *-ios
Old Latin -ios
Latin -ius
Latin -tōriusder.
Middle English -orie
English -ory
English disambiguatory
From disambiguate + -ory.