Where does “rotorless” come from?

rotorless (English) comes from English rotor, from English rotator, from English ‐or, from Middle English -our, from Old French -eor, from Latin -ator, from Latin -tor, from Proto-Italic -tōr.

rotorless (English): Without a rotor

Definitions

  1. Without a rotor

Ancestry of “rotorless”, step by step

rotorless traces back through two separate lines of ancestry.

via English rotor

StepLanguageWordMeaning
1EnglishrotorA rotating part of a mechanical device, for...
2EnglishrotatorOne who or that which rotates; A muscle by which...
3English‐orCreates an agent noun, often from a verb, indicating a person or object (often machines or parts of them) that do the verb or part of speech with which they are formed
4Middle English-our
5Old French-eorAlternative form of -or
6Latin-ator-ator, -er; second-person singular future passive...
7Latin-tor-er
8Proto-Italic-tōrForms agent nouns to verb stems
9Proto-Indo-European-tōrDerives agent nouns from verbs, denoting someone...
10Proto-Indo-European-tor-s

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 -tor-s