■ suffix
1》 forming adjectives and nouns, especially from:
↘names of places: Cuban.
↘names of systems: Anglican.
↘names of zoological classes or orders: crustacean.
↘names of founders: Lutheran.
2》 Chemistry forming names of organic compounds, chiefly polysaccharides: dextran.
Origin
from L. ~us , ~a , ~um .