impale

Concise Oxford English Dictionary © 2008 Oxford University Press:
impale/ɪmˈpeɪl/

▶verb

• 1 transfix or pierce with a sharp instrument.

• 2 Heraldry display (a coat of arms) side by side with another on the same shield, separated by a vertical line.

– derivatives
impalement noun,
impaler noun.

– origin C16: from Fr. empaler or med. L. impalare, from L. in- ‘in’ + palus ‘a stake’.