predecessor
This term describes a previous entity in a linear sequence, whether that sequence is professional, technological, or biological. It carries a neutral to positive connotation of legacy, implying that the current version or person is built upon the foundation laid by the one that came before. In a technical or industrial context, it emphasizes the evolution of design, where the predecessor is viewed as an earlier iteration. When referring to people, it specifically denotes the previous occupant of a role, distinguishing it from a general ancestor.
Meanings
A person who held a job or office before the current holder.
"The new CEO is facing challenges that his predecessor had already attempted to solve."
A thing that has been replaced by a newer or more advanced version.
"The latest smartphone is significantly faster than its predecessor."
An ancestor or a person who lived in a previous generation.
"The customs of the tribe were passed down from their predecessors over many centuries."