fore-slay

Verb

foreslay (third-person singular simple present foreslays, present participle foreslaying, simple past foreslew, past participle foreslain)

1. (poetic, rare, transitive) To slay beforehand or in advance.
   • Sole Mediator, God had promised Him, In Eden'd [sic] days an offering for sin, Immaculate conceived, the Holy One, Ere yet the earth was fashioned, the Lamb of God fore-slain.1912, The Improvement Era, volume 16, page 103