exceptionably

Etymology tree Proto-Indo-European *h₁éǵʰ Proto-Indo-European *-s Proto-Indo-European *h₁éǵʰs Proto-Italic *eks Latin ex Latin ex- Proto-Indo-European *kap- Proto-Indo-European *-yéti Proto-Indo-European *kapyéti Proto-Italic *kapjō Old Latin kapiō Latin capiō Latin excipiō Proto-Indo-European *-tisder. Proto-Italic *-tjō Latin -tiō Latin exceptiōder. Old French excepcion Anglo-Norman excepciounbor. Middle English exception English exception Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English exceptionable Proto-Indo-European *leyg- Proto-Germanic *līkąder. Proto-Germanic *-līkaz Proto-Germanic *-ê Proto-Germanic *-līkê Old English -līċe Middle English -ly English -ly English exceptionably From exceptionable + -ly.

来源：wiktionary