Synonyms of 'overwork'
1 wear yourself out
You've been overworking - you need a holiday.
wear yourself out
burn the midnight oil
burn the candle at both ends
bite off more than you can chew
work your fingers to the bone
drive yourself too far
He overworks his staff.
overwork: a dangerous disorder affecting high public functionaries who want to go fishing– The Devil's Dictionary]
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The effort of speaking had exhausted him.
It fatigues me to list them all.
Thesaurus for overwork from the Collins English Thesaurus
If you overwork or if someone overworks you, you work too hard, and are likely to become very tired or ill .