Where does “apex” come from?

Apex comes from Latin apex, derived from Proto-Italic apō, which traces back to Proto-Indo-European h₂ep-, a root meaning to fasten or fit together.

apex (English): conical priest cap; The highest or the greatest...

Definitions

  1. conical priest cap; The highest or the greatest...

Ancestry of “apex”, step by step

StepLanguageWordMeaning
1LatinapexThe extreme end of a thing; the point, summit, top
2LatinapoI fasten; attach, connect; join, bind
3Proto-Italicapō—
4Proto-Indo-Europeanh₂ep-water, body of water

Words derived from “apex”

Every word from Proto-Indo-European h₂ep- →Every word from Proto-Italic apō →Every word from Latin apo →