Where does “pääroottori” come from?

pääroottori (Finnish) comes from Finnish roottori, from English rotor, from English rotator, from English ‐or, from Middle English -our, from Old French -eor, from Latin -ator, from Latin -tor.

pääroottori (Finnish): main rotor e.g. on a helicopter

Definitions

  1. main rotor e.g. on a helicopter

Ancestry of “pääroottori”, step by step

StepLanguageWordMeaning
1Finnishroottorirotor; curl
2EnglishrotorA rotating part of a mechanical device, for...
3EnglishrotatorOne who or that which rotates; A muscle by which...
4English‐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
5Middle English-our
6Old French-eorAlternative form of -or
7Latin-ator-ator, -er; second-person singular future passive...
8Latin-tor-er
9Proto-Italic-tōrForms agent nouns to verb stems
10Proto-Indo-European-tōrDerives agent nouns from verbs, denoting someone...
11Proto-Indo-European-tor-s
Every word from Proto-Indo-European -tor-sEvery word from Latin -torEvery word from Middle English -our
pääroottori — Etymology, Origin & Word History | Etymology Explorer