lay to
lay to  {v.}
1. To give the blame or credit to; to name as cause. 
He was unpopular and when he made money, it was laid to his dishonesty, but when he lost money, it was laid to his stupidity.
Compare: LAY AT ONE'S DOOR.
2. To hold a ship or boat still against the wind. 
The pirates decided to lay to that night and go ashore in the morning.
Compare: LIE TO.
3. To exert oneself; to work hard. 
He picked up a shovel and laid to with the rest of the gang.
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Source: A Dictionary of American Idioms
