IPA: /ˈtræktɪv/
KK: /ˈtræktɪv/
Relating to the ability to pull or draw something, often used in the context of machinery or vehicles that exert traction.
The tractive force of the engine allows the train to move heavy loads.
Tractive is formed from "tract" (from Latin "tractus", meaning to pull or draw) and "-ive" (meaning having the nature of). The word "tractive" refers to something that has the nature of pulling or drawing.
Think of something that has the nature of 'pulling' ('tract') — that's why 'tractive' describes something that can pull or draw.