The story
From Ancient Greek εὖ (eû) + τροφικός (trophikós), literally “well-nourished”; equivalent to eu- + trophic.
Etymology from Wiktionary, CC BY-SA 4.0.
eutrophic
Today it means: Being rich in nutrients and minerals and therefore having an excessive growth of algae and thus a diminished oxygen content to the detriment of other organisms. Full definition →