Webster's Revised Unabridged Dictionary · 1913

obsecrate

obsecrate (ob"se*krāt) , transitive verb

[Latin obsecratus, past participle of obsecrare, prop., to ask on religious grounds; ob (see Ob-) + sacrare to declare as sacred, from sacer sacred.]

To beseech; to supplicate; to implore. [Rare] — Cockerman