How to say good night in Arabic language, study the correct pronunciation and look for the words analysis.
تُصْبِحُ عَلَى خَيْرٍ means good night in Arabic language
Translating each word from Arabic to English the meaning is:
تُصْبِحُ عَلَى خَيْرٍ
sleep on the-good
تُصْبِحُ عَلَى خَيْرٍ
tiSbaH `alal-khair - Verb تَصَبَّحَ • (taṣabbaḥa) V, non-past يَتَصَبَّحُ (yataṣabbaḥu) (Classical Arabic) to sleep in the morning -- Verb أَصْبَحَ • (ʾaṣbaḥa) IV, non-past يُصْبِحُ (yuṣbiḥu) to enter upon morning - ANSWER: وانت من اهل الخير wa anta min ahl al-khair