falter

US /ˈfɑːl.tɚ/
UK /ˈfɑːl.tɚ/
"falter" picture
1.

lose strength or momentum

:
The economy began to falter.
His voice did not falter as he delivered the speech.
2.

move unsteadily or hesitantly

:
He watched her falter and then regain her balance.
Her steps began to falter as she grew tired.