proceeder
/prəˈsiːdə/Now rare
noun
1A person who proceeds to do something; a person who carries on some action, or acts in some particular way; an agent, a doer.
2A person proceeding to a university degree. Compare proceed, inceptor. historical in later use.
Origin
Late Middle English; earliest use found in Reginald Pecock (c1392–?1459), bishop of Chichester and religious author. From proceed + -er.