counterarguable

Etymology tree
Proto-Indo-European *ḱe?
Proto-Indo-European *ḱóm
Proto-Italic *kom
Proto-Italic *kom-
Proto-Indo-European *-teros
Proto-Italic *-teros
Proto-Italic *komterosder.
Proto-Italic *komterād
Latin contrāder.
Old French contre-
Anglo-Norman countre-bor.
Middle English counter-
English counter-
Latin arguōder.
Old French arguerbor.
Middle English arguen
English argue
English counterargue
Proto-Indo-European *-tḗr
Proto-Indo-European *-dʰlom
Proto-Indo-European *-dʰlis
Proto-Italic *-ðlis
Latin -bilis
Latin -ābilis
Old French -ablebor.
Middle English -able
English -able
English counterarguable
From counterargue + -able.