What is the best translation of تَمَارَضَ زَيْدٌ?

Seven Semantic Functions of Form VI (Tafāʿul): Reciprocity, Multiplicity, Pretence, Response, Equivalence, and Independent Uses

• Zayd genuinely became ill
• Zayd made another person ill
• Zayd saw two sick people
• Zayd pretended to be ill