IPA: /ˈʌndərˌstɔːri/
KK: /ˈʌndərˌstɔri/
A layer of plants, including trees and shrubs, that grows beneath the main canopy of a forest and above the ground cover.
The understory of the forest is rich with ferns and young trees.
Understory → It is formed from "under" (from Old English "under", meaning beneath or below) and "story" (from Latin "storia", meaning a layer or level). The word "understory" refers to the layer of vegetation beneath the main canopy of a forest, indicating its position below the upper layers.
Think of something that grows 'beneath' ('under') the main layers ('story') of a forest — that's what understory means.