Where does “sporadic” come from?

Sporadic derives from Medieval Latin sporadicus, from Ancient Greek σποραδικός, ultimately from Ancient Greek σπείρω meaning "to sow," through the Proto-Indo-European root sper-.

sporadic (English): occurring in isolated instances; not epidemic;...

Definitions

  1. occurring in isolated instances; not epidemic;...

Ancestry of “sporadic”, step by step

sporadic traces back through two separate lines of ancestry.

via French sporadique

StepLanguageWordMeaning
1Frenchsporadiquesporadic
2Ancient Greekσποραδικόςdisperse, scattered
3Ancient Greekσποράςscattered, dispersed
4Ancient Greekσποράseed
5Ancient GreekσπείρωI sow; nominative/accusative/vocative dual of...
6Proto-Hellenicspéřřō
7Proto-Indo-Europeanspéryeti
8Proto-Indo-Europeansper-to fidget, twitch; to push; to be quick; to...

via Medieval Latin sporadicus

StepLanguageWordMeaning
1Medieval Latinsporadicus

Words derived from “sporadic

Every word from Proto-Indo-European sper-Every word from Proto-Indo-European spéryetiEvery word from Proto-Hellenic spéřřō