1. (Verb-Intran.) to utter sounds or words imperfectly, indistinctly, or without meaning, meaningless sounds produced by a child in its initial days of language acquisition

English: babble, chatter, prattle,
Assamese: কলকলা,
Bodo: आउराइनाय,
Mizo (Lushai): chiar nawk nawk,
Karbi: korkole

Different POS:

a. Abstract Noun: babble, chatter, prattle, কলকলনি, गोनांथि नङै बुं...

Related Idea:

b. Verb-Intran.: babble, prate, কেপকেপা, কেবকেবা, চেলচেলা...