How do tadarruj and takalluf differ?

Eleven Semantic Properties of Form V (Tafaʿʿul): Response, Affectation, Avoidance, Adoption, and More

• Both only describe wearing.
• One occurs only in past, the other only in present.
• Tadarruj is stepwise action; takalluf is affected or feigned behaviour.
• Both always indicate avoidance.