frail, be தளர்ந்து போ taḷarntu pō (taḷandu poo) (3b intr) be or become weak or delicate in health; become physically weak or tired
Usage:
அவர் வயதானதால் தளர்ந்து போயிருக்கிறார் avar vayatāṉatāl taḷarntu pōyirukkiṟār avar vayasaanadaale taḷandu pooyirukkaaru He has become very frail in his old age.