اِحْتَدّ: غَضِبَ، اِنْفَعَلَ to rage, flare up; to be (become, get) angry, furious, infuriated, incensed, exasperated, agitated, upset, excited

اِحْتَدّ: اِشْتَدّ to intensify, heighten, build up, strengthen; to be or become strong(er), severe(r), (more) intense, (more) serious