'To buckle to' definitions:

Definition of 'To buckle to'

From: GCIDE

Buckle \Buc"kle\ (b[u^]k"k'l), v. i.
1. To bend permanently; to become distorted; to bow; to curl; to kink. [1913 Webster]
Buckled with the heat of the fire like parchment. --Pepys. [1913 Webster]
2. To bend out of a true vertical plane, as a wall. [1913 Webster]
3. To yield; to give way; to cease opposing. [Obs.] [1913 Webster]
The Dutch, as high as they seem, do begin to buckle. --Pepys. [1913 Webster]
4. To enter upon some labor or contest; to join in close fight; to struggle; to contend. [1913 Webster]
The bishop was as able and ready to buckle with the Lord Protector as he was with him. --Latimer. [1913 Webster]
In single combat thou shalt buckle with me. --Shak. [1913 Webster]
To buckle to, to bend to; to engage with zeal. [1913 Webster]
To make our sturdy humor buckle thereto. --Barrow. [1913 Webster]
Before buckling to my winter's work. --J. D. Forbes. [1913 Webster]