IPA: /ˌæntɪˈmɔːrtəm/
KK: /æntɪˈmɔrtəm/
Relating to or occurring before death.
The doctors conducted an antemortem examination to determine the cause of the patient's condition.
Antemortem is formed from "ante-" (meaning before) and "mortem" (from Latin "mors", meaning death). The word refers to events or conditions that occur before death.
Think of 'ante-' meaning 'before' and 'mortem' relating to 'death' — this helps you remember that 'antemortem' refers to something that happens before death.
No commonly confused words.