Where does “adenina” come from?

adenina (Basque) comes from Spanish adenina, from German Adenin, from Ancient Greek ἀδήν — gland.

Ancestry of “adenina”, step by step

StepLanguageWordMeaning
1Spanishadeninaadenine
2GermanAdeninadenine
3Ancient Greekἀδήνgland
Every word from Ancient Greek ἀδήνEvery word from German AdeninEvery word from Spanish adenina