The term "reasonable creature" echoes the language of an influential strand Catholic doctrine on the nature of the soul and the Beginning of human personhood which generally adopted Aristotle in holding that it is the "rational soul" that infuses the fetus with "human beingness".
The designation "misprision, and no murder", can be traced to the Leges Henrici Primi of 1115, which designated abortion "quasi homicide" [REF].