Belash

The same mother, Agnes Paston, enters among her errands in London a commission to her son's tutor, Greenfield, to "belash" his charge till he amend, he being then fifteen and having been some time at Cambridge.

[…] begging him "to belash" her son, as his last master had done […]

[…] the men pulling them up with a jerk to alight and chastise some flagrant offender; and finally a babel of dismal howls and angry ascrying^([sic]), as the long rods are shortened to a convenient length and the process of belashing begins.