How are the Romance words for bishop connected to the Greek word episkopos?

The English word "bishop" and its counterparts in Romance languages (such as the French évêque, Spanish obispo, and Italian vescovo) are all derived from the Latin word episcopus.12

This Latin term was borrowed directly from the Greek word episkopos, which translates to "overseer". Originally used in Greek to describe government officials, the term was adopted into the early church vocabulary to identify leaders. Over time, as the Latin episcopus evolved through the phonological changes characteristic of the development of Romance languages, it transformed into the distinct regional forms used today.1