Re: what does the Urdu word “yum” یم] mean?
4 hii kiuN? kuchh kam ziyaada nahiiN ho saktaa? 
vo Hindi kaa lafz hai jiske ma’nii hote haiN “maut”, isii liye maut ke farishte ko:
yamraaj
yamdoot
kahte haiN.
yes, you are right…it means samandar…mubaarak ho!