IPA: /ˈækslˌtriː/
KK: /ˈækslˌtri/
A bar or rod that supports a vehicle and has parts on which the wheels turn.
The mechanic replaced the broken axletree to ensure the cart could move smoothly again.
Axletree → The word is formed from "axle" (from Old English "æxle", meaning a shaft or beam) and "tree" (from Old English "treow", meaning a tree or wood). An axletree refers to the wooden shaft that connects the wheels of a vehicle, resembling a tree in its structure.
Think of a wooden 'tree' ('treow') that serves as a 'shaft' ('æxle') connecting the wheels of a vehicle — that's what an axletree is.