Where does “unmotorable” come from?

unmotorable (English) comes from English motorable, from English motor, from Middle English motour, from Latin motor, from Latin -tor, from Proto-Italic -tōr, from Proto-Indo-European -tōr, from Proto-Indo-European -tor-s.

unmotorable (English): Not motorable; which cannot be traversed by motor...

Definitions

  1. Not motorable; which cannot be traversed by motor...

Ancestry of “unmotorable”, step by step

StepLanguageWordMeaning
1EnglishmotorableWhich can be traveled on by motor cars
2EnglishmotorA machine or device that converts other energy...
3Middle Englishmotour
4Latinmotormover; that which moves something; first-person...
5Latin-tor-er
6Proto-Italic-tōrForms agent nouns to verb stems
7Proto-Indo-European-tōrDerives agent nouns from verbs, denoting someone...
8Proto-Indo-European-tor-s
Every word from Proto-Indo-European -tor-sEvery word from Latin -torEvery word from Latin motor