Where does “bulbless” come from?

bulbless (English) comes from English less, from Middle English les, from Old English lēas, from Proto-Germanic *laus.

bulbless (English): Without a bulb or bulbs

Definitions

  1. Without a bulb or bulbs

Ancestry of “bulbless”, step by step

bulbless traces back through two separate lines of ancestry.

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

via English bulb

StepLanguageWordMeaning
1EnglishbulbAny solid object rounded at one end and tapering...
2Latinbulbusbulb
3Ancient Greekβολβόςbulb of various plants, especially onion; tassel...
Every word from Proto-Germanic *laus