What are the root and sense of al-tadallul here?

Imruʾ al-Qays: Address to Fāṭimah, Parting, and the Arrows of the Eyes (Verses 19–22)

• Q-t-l; repeatedly being killed
• D-l-l; coquettish aloofness or self-indulgent charm
• N-s-l; slipping from clothing
• Dh-r-f; shedding tears