employ, send, use

使 is composed of 人 (person) and 吏 (official). 吏 is a pictograph depicting a hand holding a tally, originally meaning a representative dispatched to visit another country. Later, 吏 came to broadly refer to government officials, so 使 retained its original meaning and extended to denote dispatching or employing. Visiting another country is akin to interactions between people, as represented by 使.