encerrar
/enθeˈraɾ/ · A2 · verb
to lock away, put away, to imprison, to nail
🔒 en + cerrar = to close in: shut someone or something inside
Built from en- (in) plus cerrar (to close), from Latin serare, to bolt. Closing a thing in gives lock up, confine, enclose. Stem-changes like cerrar: encierro, encierras. The noun encierro is a confinement.