1. The science of the causes of a thing, especially of diseases.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• etiologie,
• eccology,
• idiology,
• etomology,
• ediology,
• ethiology,
• eitology,
• euology,
• etimology,
• otnology,
• eitiology,
• aetology,
• aetiologst,
• etyology,
• etioligy,
• etioilogy,
• etiollogy,
• etiologyt,
• etiologgy,
• etmology

• ethology,
• etiologic,
• etiological,
• etiologist,
• ecology,
• ethologist.

The adjective form of the word "etiology" is "etiologic".

The plural form of the word "etiology" is "etiologies"

The singular form of the word "etiology" is "etiology".