Where does “antidiuretic” come from?

Antidiuretic derives from Ancient Greek ἀντι- (anti-, "against") and ἀντί (antí, "against"), tracing through Proto-Indo-European h₂énti and h₂ent-.

antidiuretic (English): an agent that prevents or counteracts diuresis;...

Definitions

  1. an agent that prevents or counteracts diuresis;...

Ancestry of “antidiuretic”, step by step

antidiuretic traces back through two separate lines of ancestry.

via English diuretic

StepLanguageWordMeaning
1EnglishdiureticIncreasing the amount or frequency of urination;...
2Middle Englishdiuretyk
3Old Frenchdiuretiquediuretic
4Latindiūrēticus
5Ancient Greekδιουρητικόςdiuretic
6Ancient Greek-κόςforms adjectives with the sense of 'of or...
7Proto-Indo-European-ḱos-y, -ic

via French antidiurétique

StepLanguageWordMeaning
1Frenchantidiurétiqueantidiuretic
2Frenchanti-anti
3Ancient Greekἀντι-anti-, against; like, reminiscent of
4Ancient Greekᾰ̓ντῐ́opposite

Words derived from “antidiuretic

Every word from Proto-Indo-European -ḱosEvery word from Ancient Greek -κόςEvery word from Ancient Greek διουρητικός