Chiefly Scot.to inform against; denounce or accuse.
2.
Archaic. to relate; report: to delate an offense.
Origin: 1505–15; < L dēlātus (suppletive ptp. of dēferre to bring down, report, accuse), equiv. to dē-de-+ lā- carry (ptp. s. of ferre) + -tus ptp. suffix