The term 'in-office' is a compound word formed by combining 'in' and 'office', where 'in' denotes location or position and 'office' refers to a place of work.

The term 'in-office' has been used in modern English to describe activities or tasks that occur within the confines of an office environment.

Initially, it simply referred to being physically present in an office, but it has evolved to encompass activities and tasks performed in an office setting.