IPA: /ˌoʊvərkəˈmɪt/
KK: /oʊvərkəˈmɪt/
To take on more responsibilities or commitments than one can handle.
She tends to overcommit herself with too many projects at work.
Past: overcommitted
Past Participle: overcommitted
To promise or commit to doing more than one can actually handle or fulfill.
If you overcommit to too many projects, you might end up feeling overwhelmed and unable to complete any of them.
Past: overcommitted
Past Participle: overcommitted
Overcommit → It is formed from "over-" (meaning excessively) and "commit" (from Latin "committere", meaning to entrust or to put together). The word "overcommit" means to excessively commit or entrust oneself to tasks or responsibilities beyond one's capacity.
Think of being 'excessive' ('over-') in your 'commitment' ('commit') to tasks — that's why overcommit means taking on too much.
No commonly confused words.