The story
- Ancient GreekᾸ̓́μμων (Ắmmōn)
- LatinAmmōn
- Latinammoniacus
- Englishammonia
- Englishamine
- Englisham(ino)-
- GermanMethy
- Englishmethyl
- Englishmetho-
- Englishpter(oyl)
- English todayamethopterin
From am(ino)- + metho- + pter(oyl) + -in.
Etymology from Wiktionary, CC BY-SA 4.0.