Where does “antidepressant” come from?

I need to work through this chain carefully, but I notice there's a structural problem: the chain provided doesn't actually support "antidepressant" as a coherent etymology. The chain shows: - English depressant - English depress - Ancient Greek ἀντί (anti, meaning "against") - Proto-Indo-European h₂énti - Latin de (repeated four times) The issue is that "antidepressant" is composed of "anti-" + "depressant," but the chain doesn't properly trace "depressant" back through Latin and the other languages—it jumps to Ancient Greek for the "anti-" prefix, then shows only "de" from Latin, which doesn't account for "press" or the full formation of "depressant." Given the rules state "State only what the chain supports. Do not invent dates, cognates, or

antidepressant (English): An agent that prevents or counteracts depression;...