Suffixes: ANT, RIAN, EER/IER, IST, WRIGHT

octogenarian

n. a person in his or her eighties (octo-eight, gen-birth)

inhabitant

n. a person or animal that lives in or inhabits a place; resident

financier

n. a person skilled or occupied with financial (money) operations.

accompanist

n. a person who accompanies, or plays the piano for, singers or dancers

wheelwright

n. a person who builds or repairs wheels

shipwright

n. a person who builds or works with ships

immigrant

n. a person who comes to live permanently in a foreign country (immigrates)

preservationist

n. a person who does work to preserve or save

descendant

n. a person who is related to someone and who lives after him or her (descends), such as child or grandchild

qualifier

n. a person who qualifies or has the skills to advance to another round of competition

electioneer

n. a person who works at getting another person elected to public office

playwright

n. a person who works on or with plays

philanthropist

n. a person who works or gives money/gifts to charities to to benefit others (philanthropy)

humanitarian

n. a person working for the welfare of all humans (humanity)

equestrian

n. having to do with horseback riding (horse-equine)

ist

one who practices...

wright

one who works on or with...

ant, ier/eer, arian/rian

one who...