The word 接替 (jiētì) is a compound verb formed by combining two characters with related meanings: 接, meaning "to receive", "to take over", or "to connect", and 替, meaning "to substitute" or "to replace". Together, they create a single concept where the action of "taking over" (接) is specifically for the purpose of "replacing" (替) someone in a role, duty, or position. This formation follows a common Chinese lexical pattern of pairing near-synonyms to create a more precise and nuanced term, in this case meaning "to succeed someone" or "to take over from".