bioaccumulator

Etymology tree
Proto-Indo-European *gʷeyh₃-der.
Ancient Greek βῐ́ος (bĭ́os)
Ancient Greek βῐο- (bĭo-)der.
English bio-
Proto-Indo-European *h₂éd
Proto-Italic *ad
Proto-Italic *ad-
Latin ad-
Proto-Indo-European *ḱewh₁-
Proto-Indo-European *ḱuh₁mósder.?
Latin cumulus
Proto-Indo-European *-h₂
Proto-Indo-European *-éh₂
Proto-Indo-European *-yéti
Proto-Indo-European *-eh₂yéti
Proto-Italic *-āō
Latin -ō
Latin cumulō
Latin accumulō
Proto-Indo-European *-tōr
Proto-Italic *-tōr
Latin -tor
Latin accumulātorbor.
English accumulator
English bioaccumulator
From bio- + accumulator.