Where does “myasthenic” come from?

Myasthenic derives from English myasthenia, from Ancient Greek ἀσθένεια weakness, from ἀσθενής weak, combining ἀ- not with a root ultimately from Proto-Indo-European ne.

myasthenic (English): Of, pertaining to, or suffering from myasthenia;...

Definitions

  1. Of, pertaining to, or suffering from myasthenia;...

Ancestry of “myasthenic”, step by step

StepLanguageWordMeaning
1EnglishmyastheniaAbnormal weakness of the muscles; but especially...
2Ancient Greekἀσθένειαweakness; sickness; moral weakness, depravity
3Ancient Greekἀσθενήςwithout strength, weak; feeble, sickly; sick, ill
4Ancient Greekσθένοςstrength, might, power
5Englishmicro-API; Very small; One millionth
6Ancient Greekμικρο-micro
7Ancient Greekμικρόςlittle, small
8Proto-Indo-Europeanmēy-soft, tender, dear

Words derived from “myasthenic

Every word from Proto-Indo-European mēy-Every word from Ancient Greek μικρόςEvery word from English micro-
myasthenic — Etymology, Origin & Word History | Etymology Explorer