a si hmasa bikmi thil

prototype – Example: A hollowed log was the prototype of modern ships = Thingtum da kha tuchan tilawng hna an thawhkehnak a rak si ko, tuchan tilawng han hi an rak si hmasa bikmi cu thingtum dao a si

a si khawhnak

limit – Example: They stretched the rope to its limit = Hri kha aa zam khawhnak a donghnak tiang an reng