jail
1.
2.
noun
Often used to modify another noun: a jail population; jail conditions.
verb
jailed, jailing, jails
To detain in custody; imprison.
[From Middle English jaiole (from Old French) and from Middle English gaiol, gaol (from Old North French gaiole), both from Vulgar Latin *gaviola, from Latin *caveola diminutive of cavea, cage, hollow.]