«فَقَرْقَرَ زَفْرَةَ الْقَيْظِ وَكَادَ يَتَمَيَّزُ مِنَ الْغَيْظِ»
He let out a heated, rumbling sigh and almost burst with anger.
Qayẓ means intense heat; ghayẓ means anger. The echo between the words connects bodily heat with emotion; yatamayyazu intensifies the image of almost bursting apart.
For a moment speech gives way to gesture and bodily response. The scene becomes dramatic rather than merely reported.