This is the 429th most frequent Tamil word.
தளர
"தளர" means "to loosen" or "to weaken" in English.
In this sentence, 'தளர' (thalara) is used in the context of physical weakness or exhaustion caused by effort.
அவன் கடினமாக வேலை செய்ததுடன் உடல் தளர்ந்தது.
He worked hard and his body weakened.
Here, 'தளர' is used metaphorically to describe a decrease in emotional or mental strength.
மன வலிமை இல்லாதபோது நமது ஆவி தளரக்கூடும்.
When there is no mental strength, our spirits may weaken.
In this case, 'தளர' refers to the diminishing or easing of physical movement or activity due to external factors.