scientist geologist
artist
motorist and terroist
Dentist, Pianoist, etc.
Words ending in tious:ambitiouscontentiousfacetiousfactiousfictitiousflirtatiousfractiouspretentiousscrumptioussuperstitious
optimist
scientist, dentist, orthodontist, pharmacist, and terrorist
The suffix here would be -ist, meaning "one who does (something)."
Some words ending with the suffix "shion" are "fashion," "passion," and "cushion."
First of all, they can -ist in the words biologist or chemist wouldn't be considered as a suffix. If we take away -ist from biologist, it would be biolog. That's not a word. Same with chemist. Technically, -ist means what a person is. For example, if I were a biologist,I would study biology.
I believe what you are asking for is examples of words ending with the suffix "-city" such as: velocity veracity paucity
It is a word
The suffix for analyst is -ist.