mtamthak mtao (Dimasa) Contributed by: Kulendra Daulagupu on 2010-11-05 1. (Verb-Trans.) to ensure a seat for a service such as train, bus or for a theater by paying advanced money English: book, reserve, Assamese: আৰক্ষণ কৰ্, সংৰক্ষণ কৰ্, Dimasa: buk klai, mtao, rijarb klai