impressibly

Etymology tree
Proto-Indo-European *h₁én
Proto-Italic *en
Proto-Italic *en-
Latin in-
Proto-Indo-European *per-?
Proto-Indo-European *pres-der.
Proto-Italic *pres-
Latin premō
Latin imprimō
Latin impressusder.
Middle English impressen
English impress
Proto-Indo-European *-tḗr
Proto-Indo-European *-dʰlom
Proto-Indo-European *-dʰlis
Proto-Italic *-ðlis
Latin -bilis
Latin -ibilis
Old French -ibleder.
Middle English -ible
English -ible
English impressible
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 impressibly
From impressible + -ly.