A model or type of machinery or device which precedes the current (or later) one. Usually used to describe an earlier, outdated model.
One who precedes; one who has preceded another in any state, position, office, etc.; one whom another follows or comes after, in any office or position.
A vertex having a directed path to another vertex
A predecessor of something, especially if also a precursor or model.
A forefather, any of a person's direct ancestors.
A founder.
An ancestral form of a species.
Someone who originates something.
An individual from whom one or more people (dynasty, tribe, nation...) are descended.