English

Etymology

Etymology tree
English question
Proto-Indo-European *-tḗr
Proto-Indo-European *-dʰlomder.
Proto-Indo-European *-dʰlis
Proto-Italic *-ðlis
Latin -bilis
Latin -ābilis
Old French -ablebor.
Middle English -able
English -able
English questionable
Proto-Indo-European *leyg-der.
Proto-Germanic *līkąder.
Proto-Germanic *-līkaz
Proto-Germanic *-ê
Proto-Germanic *-līkê
Proto-West Germanic *-līkē
Old English -līċe
Middle English -ly
English -ly
English questionably

    From questionable + -ly.

    Adverb

    questionably (comparative more questionably, superlative most questionably)

    1. in a questionable manner

    Translations

    source: https://en.wiktionary.org/wiki/questionably