A new word or phrase from the Hans Wehr dictionary, every Wednesday.

استشاط غضبا (ḡaḍaban) to be or become fuming with rage, flare up, fly off the handle
Root: ش-ي-ط
Page: 581*
Example: “اِسْتَشاطَ غَضَباً عِنْدَما أَدْرَكَ أَنَّ زَوْجَتَهُ قَد خَدَعَتهُ”
Translation: “he was fuming with rage when he realised that his wife had deceived him”
* The Hans Wehr Dictionary of Modern Written Arabic, 4th Edition