This is the 6198th most frequent Arabic word.
idoom
The Arabic word "يدوم" (idoom) means "it lasts" or "it continues."
The verb 'يدوم' (yadoom) describes the duration or persistence of an event.
يدوم الحفل لساعات طويلة.
The party lasts for long hours.
Used here, 'يدوم' (yadoom) signifies the hope for the continuation or perpetuation of a state, in this case, peace.
أتمنى أن يدوم السلام في العالم.
I wish peace to last in the world.
In this question, 'يدوم' (yadoom) addresses the concept of persistence or longevity of a condition, here referring to happiness.