Where does “thornless” come from?

thornless (English) comes from English thorn, from Middle English þorn, from Old English þorn, from Proto-West Germanic þorn, from Proto-Germanic þurnuz, from Proto-Indo-European tr̥nós, from Proto-Indo-European (s)ter- — strong, firm, stiff, rigid; rigid, stiff; to...

thornless (English): Without thorns

Definitions

  1. Without thorns

Ancestry of “thornless”, step by step

thornless traces back through two separate lines of ancestry.

via English thorn

StepLanguageWordMeaning
1EnglishthornA sharp protective spine of a plant; Any shrub or...
2Middle EnglishþornAlternative form of thorn
3Old Englishþornthorn; thorny bush; the runic character ᚦ; the...
4Proto-West Germanicþornthorn, briar
5Proto-Germanicþurnuzthorn, briar
6Proto-Indo-Europeantr̥nóssharp, stiff
7Proto-Indo-European(s)ter-strong, firm, stiff, rigid; rigid, stiff; to...

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

Words derived from “thornless

Every word from Proto-Indo-European (s)ter-