Where does “P-factor” come from?

P-factor (English) comes from English propeller, from English -er, from Middle English -er, from Old French -er, from Latin -āre, from Proto-Italic -āō, from Proto-Indo-European -eh₂yéti, from Proto-Indo-European -yéti — he, she.

P-factor (English): An aerodynamic phenomenon experienced by a moving propeller, whereby the propeller's center of thrust moves off-center when the aircraft is at a high angle of attack

Definitions

  1. An aerodynamic phenomenon experienced by a moving propeller, whereby the propeller's center of thrust moves off-center when the aircraft is at a high angle of attack

Ancestry of “P-factor”, step by step

P-factor traces back through two separate lines of ancestry.

via English propeller

StepLanguageWordMeaning
1EnglishpropellerOne who, or that which, propels; A mechanical...
2English-erA person or thing that does an action indicated...
3Middle English-eragentive suffix; agent noun suffix
4Old French-erAlternative form of -ier, verbal suffix;...
5Latin-ārefirst conjugation
6Proto-Italic-āōForms primarily denominative verbs
7Proto-Indo-European-eh₂yétiCreates iterative/ frequentative/ intensive...
8Proto-Indo-European-yétiCreates intransitive, often deponent,...
9Proto-Indo-Europeanyé-
10Chichewaiyehe, she

via English factor

StepLanguageWordMeaning
1EnglishfactorA doer, maker; a person who does things for...
2Middle Frenchfacteur
3LatinfactorOne who or which does or makes something; doer,...
4Latinfaciōto do
5Latin-toriumnominative neuter singular of -tōrius; accusative...
6Latin-tōriusory
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
Every word from Chichewa iyeEvery word from English -erEvery word from Proto-Indo-European -yéti