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