IPA: /ˌoʊvərɪkˈstɛnʃən/
KK: /oʊvərɛkˈstɛnʃən/
The condition of having taken on too much responsibility or having stretched something beyond its limits.
The company's overextension led to financial difficulties and eventual bankruptcy.
Overextension → It is formed from "over-" (meaning excessively or beyond) and "extension" (from Latin "extendere", meaning to stretch out). The word refers to the act of stretching something beyond its limits or capacity.
Think of going 'beyond' ('over-') what can be 'stretched out' ('extendere') — that's why overextension means stretching too far.