Where does “vertexless” come from?

vertexless (English) comes from English vertex, from Latin vertex, from Latin vertō, from Proto-Italic wertō, from Proto-Indo-European wert-, from Proto-Indo-European wer- — to burn; to cover, heed, notice; squirrel.

vertexless (English): Without a vertex

Definitions

  1. Without a vertex

Ancestry of “vertexless”, step by step

vertexless traces back through two separate lines of ancestry.

via English vertex

StepLanguageWordMeaning
1EnglishvertexThe highest point of something; The highest...
2Latinvertexwhirlpool, eddy, vortex; crown; top, peak, summit
3Latinvertōto turn, turn oneself, direct one's way, to turn about, turn around, revolve
4Proto-Italicwertōto turn
5Proto-Indo-Europeanwert-to turn, to rotate
6Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel

via English less

StepLanguageWordMeaning
1EnglishlessTo a smaller extent or degree; comparative form...
2Middle Englishlesfalse; lying; deceptive; falsehood; a lie
3Old Englishlēasfalse, lax; false, void, loose; devoid of, loose...
4Proto-Germanic*laus
Every word from Proto-Indo-European wer-Every word from Proto-Indo-European wert-Every word from Proto-Italic wertō