etiological

-ical

Used to form adjectives from nouns with the meaning "of or pertaining to"; adjectival suffix appended to various words, often nouns, to make an adjective form. Often added to words of Greek or Latin origin, but used with other words also.

也可拆解为

etio-

(biology, medicine) cause; causes; causation.

-logical

Used to form adjectival forms of nouns ending in -logy.