1) To make fast with a tether.
The practice of tethering animals on patches of waste or in the open fields was formerly subject to strict control: 1556 haithe aswell of use and custome as of right eaten the edishe of Hardye Flatt with there cattell ... And aswell tethered ... there Cattell there at edishe after corne haith bene gonne and ... when it haithe beyne faughe, Bulmer
1580 have forfayte one paine laid at the last Courte for tethering and gayting cattell in the Byerdole feildes, Dewsbury
1590 common stynt which was for every oxgan a gate ... and they used to kepe ther horses tethered at ther land ends, one horse for two oxgangs, Kirby Underdale. The practice was explained fully by East Riding farmer Henry Best: 1642 Our townsfolks ... just on St Hellen-day ... beginne to teather theire draught Cattle ... abroad in the field, on the heads, common balkes, bounders of fields and their owne lande ends, Elmswell.