'traction-improving' is a compound word formed from 'traction' and 'improving'. 'Traction' originates from Latin 'tractio', meaning 'a drawing or pulling'. 'Improving' comes from the verb 'improve', which originates from the Latin 'improbare', meaning 'to make better'.

'Traction' evolved from the Latin 'tractio' through Old French 'traction', while 'improving' developed from the Latin 'improbare' through Middle English 'improven'.

Initially, 'traction' referred to the act of drawing or pulling, but it evolved to mean the grip or friction between surfaces. 'Improving' has consistently meant making something better.