IPA: /ˌoʊvərɪnˈfleɪt/
KK: /oʊvərɪnˈfleɪt/
To fill something with too much air or gas, making it larger than necessary.
Be careful not to overinflate the balloon, or it might burst.
Past: overinflated
Past Participle: overinflated
Overinflate → It is formed from "over-" (meaning excessively) and "inflate" (from Latin "inflatare", meaning to blow up or swell). The word "overinflate" means to excessively blow up or swell something beyond its normal capacity.
Think of 'over' meaning excessively and 'inflate' meaning to blow up — so overinflate means to blow something up too much.