pandy
verb
pan·dy ˈpan-dē 
pandied; pandying
transitive verb
British
: to punish (a schoolboy) with a blow on the palm of the hand especially with a ferule
Word History
Etymology
probably from Latin pande, imperative singular of pandere to spread out (the hand), command of the schoolmaster to the boy — more at fathom
First Known Use
1765, in the meaning defined above