ExpressionMeaningCentral point
مَرِضَ زَيْدٌZayd became illIllness is asserted
تَمَارَضَ زَيْدٌZayd feigned illnessAppearance conflicts with reality
Takalluf (from the earlier Form V section)Effortfully adopting a manner or traitNot identical to pretending
Takhyīl centres on false appearance. Takalluf can centre on deliberate effort or affectation. The terms may overlap in particular contexts, but do not collapse the categories taught in different chapters.