IPA: /ˌoʊvərɪkˈspænd/
KK: /oʊvərɪkˈspænd/
To increase in size, amount, or scope beyond what is reasonable or necessary.
The company decided to overexpand, opening too many new stores at once.
Past: overexpanded
Past Participle: overexpanded
Overexpand → It is formed from "over-" (meaning excessively or beyond) and "expand" (from Latin "expandere", meaning to spread out). The word "overexpand" means to spread out excessively or beyond normal limits.
Think of going 'beyond' ('over-') what is 'spread out' ('expand') — that's why overexpand means to spread too much.
No commonly confused words.