IPA: /ˌpriːˈɒpəreɪtɪvli/
KK: /priˈɑpərətɪvli/
In a context related to the time before a surgical operation.
The doctor explained the procedure preoperatively to ensure the patient understood what to expect.
Preoperatively → It is formed from "pre-" (meaning before) and "operari" (meaning to work or to operate) and the suffix "-ively" (meaning in a manner). The word "preoperatively" refers to the period or actions taken before a surgical operation.
Think of doing things 'before' ('pre-') an 'operation' ('operari') — that's what preoperatively means.