work (one's) fingers to bone

Translations
работать до изнеможения
He worked his fingers to the bone to provide for his family.
Он работал до изнеможения, чтобы обеспечить свою семью.
Definitions
To work extremely hard, often for a long period of time, usually to the point of exhaustion or physical discomfort.
Words
work

verb
работать
one's

article or possessive pronoun
свои
fingers

noun
пальцы
to

preposition
до
the

article or possessive pronoun
до
bone

noun
костей