unannoying

Etymology tree
Proto-Indo-European *né
Proto-Indo-European *n̥-
Proto-Germanic *un-
Proto-West Germanic *un-
Old English un-
Middle English un-
English un-
Proto-Indo-European *h₁én
Proto-Italic *en
Proto-Italic *en-
Latin in-
Proto-Indo-European *h₃ed-der.
Proto-Italic *odjom
Latin odium
Proto-Indo-European *-h₂
Proto-Indo-European *-éh₂
Proto-Indo-European *-yéti
Proto-Indo-European *-eh₂yéti
Proto-Italic *-āō
Latin -ō
Late Latin inodiāre
Old French enoiierbor.
Middle English anoyen
English annoying
English unannoying
From un- + annoying.