Such "synths" are nothing new under the sun, otherwise known previously as golem.

The word golem occurs once in the Bible in Psalm 139:16, which uses the word גלמי (galmi; my golem), that means "my light form", "raw" material, connoting the unfinished human being before God's eyes. The Mishnah uses the term for an uncultivated person: "Seven characteristics are in an uncultivated person, and seven in a learned one," (גלמוד בירב העבר) (Pirkei Avot 5:6 in the Hebrew text; English translations vary). In Modern Hebrew, golem is used to mean "dumb" or "helpless". Similarly, it is often used today as a metaphor for a brainless lunk or entity who serves a man under controlled conditions but is hostile to him under others. "Golem" passed into Yiddish as goylem to mean someone who is clumsy or slow.

In Jewish folklore, golem (גלם) is an animated anthropomorphic being that is magically created entirely from inanimate matter (specifically clay or mud). The word was used to mean an amorphous, unformed material in Psalms and medieval writing.